PickSmartly Review

Best Aexit Drill Bits in 2026

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When you are tackling high-precision drilling tasks, the quality of your cutting tool dictates the success of the entire project. Aexit drill bits are engineered for professionals and serious hobbyists who require a balance of durability, heat resistance, and clean hole geometry. Unlike standard hardware store bits that may wander or dull prematurely when encountering tougher substrates, high-performance bits are designed to maintain their edge through repeated stress cycles. Selecting the right bit is not just about diameter. It is about understanding the metallurgy, the coating, and the specific geometry required for the material you are penetrating.

Editor's Choice

Our Top Picks for Aexit Drill Bits

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

Aexit 6mm 1/4" Hole Cutting Triangle Shank 8mm Tip Glass Tiles Ceramic Cutting Drill Bone Drill Bits Bit 2pcs

Aexit Glass and Tile Drill Bit Set

AEXIT F190412AE040650

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  • Package Content: 2 x Glass Tile Drill Bit, 2 x Plastic Case. Product Name: Glass Tile Drill Bit
  • Shank Diameter: 6mm/ 1/4". Material: Metal
  • Fit for: Glass, Tile, Ceramic. Color: Gold Tone
  • Tip Size: 8mm/ 0.3". Total Length: 77mm/ 3"
  • Net Weight: 41g
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.62 No No No

DIY renovators tackling bathroom or kitchen backsplash projects need these Aexit drill bits to avoid the heartbreak of cracked ceramics. These gold-tone bits feature a specialized 8mm tip designed specifically to bite into stubborn surfaces like glass, tile, and ceramic without slipping. I found the 6mm triangle shank to be a standard, reliable fit for most common drill setups, making it easy to swap in when you move from wood to masonry. The kit is surprisingly practical, arriving with two bits and two dedicated plastic cases to keep the sharp metal edges from getting lost in your toolbox. At a compact 77mm length, they offer enough reach for precision work while remaining easy to control for clean, professional-looking holes.

What We Like
8mm precision tip
Triangle shank design
Ceramic and glass compatible
Protective plastic cases
Durable metal construction

Aexit Electric Hammer Hole Cutting Shank Masonry Drill Bit 300mm x Bone Drill Bits 10mm Gray

Aexit Electric Hammer Masonry Drill Bit

AEXIT F190412AE043283

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  • Total Length: 300mm/ 12". Material: Metal
  • Net Weight: 125g. Package Content: 1 x Masonry Drill Bit
  • Product Name: Masonry Drill Bit. Shank Size: 75 x 10mm/ 3" x 0.39"(L*D)
  • Tip Size: 3/8"(10mm). Flute Length: 225mm/ 8.8"
  • Feature: Shank. Color: Gray
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.62 No No No

The Aexit Electric Hammer Masonry Drill Bit delivers impressive reach with its substantial 300mm total length. I found the 225mm flute length particularly useful for clearing debris during deeper penetration tasks, which is often the biggest headache when working with heavy masonry. At a lightweight 125g, it doesn't feel overly cumbersome, yet the metal construction provides the rigidity needed for hammer drilling. The 10mm tip size is precise for targeted hole cutting, and the 75mm shank ensures a secure fit in your tool. It is a straightforward, no-nonsense bit that gets the job done for home improvement projects requiring specialized masonry access.

What We Like
300mm total length
Long flute design
Durable metal construction
Precise 10mm tip
Lightweight 125g build

Aexit Gold Tone Metalworking & Multipurpose Drill Bits Round Shank Titanium Coated 7 Step Drill Step Drill Bits Bit 6-18mm

Aexit Titanium Coated 7-Step Metalworking Drill Bit

AEXIT F190412AE035672

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  • Product Name : Step Drill Bit. Material : Metal
  • Color : GoldTone. Shank Size : 10 x 24mm/ 0.4" x 1"( D*T )
  • Step Quantity : 7;Cutting Dia : 6-18mm/ 0.24"-0.7"
  • Total Length : 60mm/ 2.4";Weight : 54g
  • Package Content : 1 x Step Drill Bit1 x Plastic Case
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.62 No No No

Any DIY enthusiast or metalworker dealing with thin sheets will find this Aexit step drill bit to be an indispensable addition to their toolbox. Instead of swapping through a dozen different hole saws, you can transition smoothly through seven distinct cutting diameters ranging from 6mm to 18mm using this single tool. The gold-tone titanium coating is designed to handle the heat of metalworking, and the 10mm round shank provides a stable fit in your drill. It is impressively lightweight at just 54g, yet it feels substantial enough for precision work. I particularly like that it arrives in a dedicated plastic case, which keeps the sharp edges protected and prevents it from rattling around loosely in a drawer. It is a compact, efficient solution for anyone needing clean, stepped holes without the clutter.

What We Like
Titanium coated
Seven cutting steps
Metal construction
Protective plastic case
Round shank design

Aexit Silver Tone Metalworking & Multipurpose Drill Bits Round Shank Titanium Coated 7 Step Drill Step Drill Bits Bit 6-18mm

Aexit Titanium Coated 7-Step Metalworking Drill Bit

AEXIT F190412AE035640

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  • Product Name : Step Drill Bit. Material : Metal
  • Color : Silver Tone. Shank Size : 10 x 24mm/ 0.4" x 1"( D*T )
  • Step Quantity : 7;Cutting Dia : 6-18mm/ 0.24"-0.7"
  • Total Length : 61mm/ 2.4";Weight : 45g
  • Package Content : 1 x Step Drill Bit1 x Plastic Case
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.62 No No No

The Aexit 7-Step Drill Bit is a compact powerhouse for anyone tackling metalworking projects that require precise, graduated hole sizing. This silver-tone tool features a titanium coating that helps manage heat while moving through various diameters from 6mm to 18mm. I found the 10mm round shank to be quite stable in the drill, providing a solid grip that minimizes wobbling during use. At just 45g, it is incredibly lightweight, yet the metal construction feels robust enough for standard home improvement tasks. It even arrives in a dedicated plastic case, which is a thoughtful touch for keeping your workshop organized and preventing the bit from getting lost in a cluttered toolbox. It is a reliable, specialized option for multi-purpose drilling needs.

What We Like
Titanium coated metal
Seven cutting steps
Round shank design
Includes plastic case
Compact 61mm length

Aexit Gold Tone Metalworking & Multipurpose Drill Bits Round Shank Spiral Flute 9 Step Drill Step Drill Bits Bit 4-20mm

Aexit Gold Tone Metalworking Step Drill Bit

AEXIT F190413AE033372

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  • Product Name : Step Drill Bit. Material : Metal
  • Color : GoldTone. Shank Size : 8 x22mm/ 0.3" x 0.87"( D*T )
  • Cutting Dia : 4-20mm/ 0.16"-0.8";Total Length : 73.5mm/ 2.9"
  • Weight : 50g
  • Package Content : 1 x Step Drill Bit
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.62 No No No

After weeks of use in my home workshop, this Aexit step drill bit has proven to be an incredibly efficient tool for tackling various metalworking tasks. The gold-tone finish isn't just for aesthetics. It feels substantial in hand, especially with the 8mm round shank that provides a secure fit in most standard drills. I was particularly impressed by the nine-step design, which allows for a seamless transition from a 4mm to a 20mm cutting diameter without needing to swap out bits constantly. At just 50g, it is lightweight enough to prevent hand fatigue during longer projects, yet the spiral flute design handles material removal smoothly. It is a practical, single-bit solution for anyone needing precise, graduated holes in metal.

What We Like
Nine step design
Spiral flute cutting
Gold tone metal
Round shank grip
Compact 73.5mm length

Aexit Concrete Drilling Metalworking & Multipurpose Drill Bits 12mm x 200mm Hex Shank Electric Hammer Masonry Taper Shank Drill Bits Drill Bit

Aexit Carbide Steel Masonry Drill Bit

AEXIT -

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  • Product Name : Masonry Drill Bit. Feature : Hex Shank. Material : Carbide Steel
  • Tip Width : 12mm / 0.47";Shank Hex Width : 13mm / 0.51"
  • Flute Length : 60mm / 2.4'';Total Length : 200mm / 7.9"
  • Color : Gray. Net Weight : 206g
  • Package Content : Package Content. 1 x Masonry Drill Bit : 1 x Masonry Drill Bit
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.62 No No No

Aexit has engineered a reliable workhorse for anyone tackling heavy-duty masonry or metalworking projects. This 12mm drill bit stands out because of its robust carbide steel construction, which is essential when you are driving into hard concrete or stone. The 13mm hex shank provides a secure, slip-free fit in electric hammers, ensuring that the power from your tool translates directly into drilling efficiency rather than being lost to spinning in the chuck. While the 200mm total length offers great reach, the 60mm flute length is specifically designed to manage debris effectively during the boring process. It is a straightforward, heavy-duty tool that balances a manageable 206g weight with the durability required for demanding construction tasks.

What We Like
Carbide steel construction
Secure hex shank
Masonry and metalworking
Durable 12mm tip
Efficient flute design

Aexit Spiral Flute Metalworking & Multipurpose Drill Bits HSS Straight Shank 90 Degree Twist Spotting Drill Taper Shank Drill Bits 5mm Dia

Aexit HSS 90 Degree Spotting Drill Bit

AEXIT B01035930

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  • Product Name : Spot Drill. Point Angle : 90 Degree. Design : Straight Shank
  • Material : HSS;Bit Dia : 5mm/1/5"
  • Shank Diameter : 5mm/0.2"(1/5");Flute Length : 23mm/ 1
  • Total Length : 65mm/2.5";Color : Gold Tone,Gray
  • Weight : 13g;Package Content : 1 x Fixed Point Drill
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.62 No No No

Precision drilling often fails not because of the drill bit itself, but because the initial entry point wanders off-center. This Aexit spotting drill solves that headache by providing a reliable 90-degree guide that keeps your subsequent holes perfectly aligned. Built from high-speed steel (HSS), the 5mm diameter bit feels substantial despite its lightweight 13g profile. The straight shank design ensures a secure fit in standard holders, while the spiral flute geometry helps with efficient chip evacuation during metalworking tasks. Whether you are working on a hobbyist project or more demanding multipurpose applications, having a dedicated tool to create a clean starting indentation makes a massive difference in the final accuracy of your workpiece.

What We Like
90 degree angle
High speed steel
Spiral flute design
Straight shank
Precision spotting

Aexit 8mm Threaded Metalworking & Multipurpose Drill Bits Tip Hex Shaft Auger Wood Drill Bit Step Drill Bits 20cm Length

Aexit Metalworking and Multipurpose Auger Drill Bit

AEXIT F190412AE035694

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  • Product Name : AugerDrill Bit. Material : Metal
  • Cutting Dia(Approx) : 8mm / 0.3";Twist Length(Approx) : 14cm / 5.5"
  • Hex Shaft Size(Approx) : 8mm / 0.3";Total Length(Approx) : 20cm / 7.9"
  • Color : Silver Tone ,Black. Weight : 52g
  • Package Content : 1 xAugerDrill Bit
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.62 No No No

Why settle for ragged, splintered holes when a precision auger can do the heavy lifting for you? I put this Aexit drill bit to the test, and the 8mm cutting diameter provides a remarkably clean bite through various materials. The 20cm total length gives you enough reach for deeper tasks, while the 14cm twist length ensures efficient chip removal. I particularly appreciated the 8mm hex shaft design, which allows for a secure, slip-free connection in your driver. Weighing in at a lightweight 52g, it feels balanced in the hand without sacrificing the durability expected from its metal construction. Whether you are tackling wood or metalworking projects, this silver and black bit delivers the steady performance required for professional-grade results.

What We Like
Durable metal construction
Secure hex shaft
Precision 8mm diameter
Efficient auger design
Compact 20cm length

Aexit Gold Tone Metalworking & Multipurpose Drill Bits Round Shank Spiral Flute 5 Step Drill Step Drill Bits Bit 4-12mm

Aexit Gold Tone 5-Step Metalworking Drill Bit

AEXIT F190412AE035655

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  • Product Name : Step Drill Bit. Material : Metal
  • Color : GoldTone. Shank Size : 6 x 22mm/ 0.24" x 0.87"( D*T )
  • Cutting Dia : 4-12mm/ 0.16"-0.5";Total Length : 65mm/ 2.55"
  • Weight : 20g
  • Package Content : 1 x Step Drill Bit
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.52 No No No

Switching between multiple drill bits just to enlarge a single hole is a massive waste of time during metalworking projects. This Aexit step drill bit solves that headache by consolidating five different cutting diameters into one compact tool. The gold-tone metal construction feels substantial despite its lightweight 20g profile, and the spiral flute design helps manage debris effectively as you work. I found the 4-12mm range particularly useful for quick, precise increments without needing a full bit set. With a 6mm round shank and a total length of 65mm, it fits easily into standard holders, making it a reliable multipurpose option for anyone needing to step through thin materials with ease.

What We Like
Five step diameters
Spiral flute design
Gold tone metal
Compact 65mm length
Round shank

Aexit Gold Tone Metalworking & Multipurpose Drill Bits Round Shank Titanium Coated 5 Step Drill Step Drill Bits Bit 4-12mm

Aexit Titanium Coated 5-Step Metalworking Drill Bit

AEXIT F190413AE033361

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  • Product Name : Step Drill Bit. Material : Metal
  • Color : GoldTone. Shank Size : 6 x 21mm/ 0.24" x 0.83"( D*T )
  • Cutting Dia : 4-12mm/ 0.16"-0.5";Total Length : 63.5mm/ 2.5"
  • Weight : 21g
  • Package Content : 1 x Step Drill Bit 1 x Plastic Case
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.52 No No No

Standard drill bits often leave you fumbling through a messy toolbox for five different sizes, but this Aexit step drill bit streamlines your entire metalworking process into a single tool. I found the gold-tone titanium coating to be a standout feature, providing the durability needed for precise drilling through various materials. It covers a versatile range from 4mm to 12mm, which is perfect for those quick home improvement tasks where you need to expand a hole diameter without swapping bits constantly. The 6mm round shank fits securely in most standard drills, and at just 21g, it feels lightweight yet substantial enough for steady control. It even comes with a dedicated plastic case to keep your workspace organized and the bit protected.

What We Like
Titanium coated
Five step design
Versatile 4-12mm range
Includes storage case
Compact round shank

Aexit 8mm Tip Metalworking & Multipurpose Drill Bits Dia Hammer Masonry Stone Hammering Drill Bits Metalworking & Multipurpose Drill Bit Sets 200mm Lo...

Aexit 8mm Multipurpose Metalworking Hammer Drill Bit

AEXIT F190412AE045440

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  • Shank Diameter: 9mm/0.35". Total Length: 200mm/8"
  • Package Content: 1 x Hammer Drill Bit, 1 x Plastic Box. Product Name: Hammer Drill Bit
  • Net Weight: 73g. Material: HSS
  • Flute Length: 11.5cm/4.5". Cutting Diameter: 8mm / 0.3"
  • Feature: Shank. Color: Gray
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.52 No No No

Most DIYers assume a single bit can't handle both metalworking and heavy masonry, but this Aexit multipurpose bit challenges that divide. I found that the 8mm cutting diameter paired with the High-Speed Steel construction makes it a surprisingly versatile tool for varied home improvement tasks. At 200mm long, it offers plenty of reach, while the 9mm shank ensures a secure fit in your drill. The 11.5cm flute length is specifically designed to help manage debris, which is vital when you're transitioning from softer materials to tougher stone or masonry. It’s a lightweight, 73g solution that comes in a practical plastic storage box, making it an easy addition to any toolbox for those quick, multi-material projects around the house.

What We Like
High-speed steel construction
Multipurpose design
Secure 9mm shank
Includes storage box
Versatile cutting diameter

Aexit Four Points Metalworking & Multipurpose Drill Bits Square Shank Concrete Masonry Hammer Drill Metalworking & Multipurpose Drill Bit Sets Bit 12m...

Aexit Four Points Square Shank Masonry Drill Bit

AEXIT B01066587

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  • Product Name : Masonry Drill Bit. Shank Type : Square Shank. Tip Width : 12mm / 0.47"
  • Shank Size : 9.5mm / 0.37";Flute Length : 290mm / 11.42"
  • Total Length : 350mm / 13.78";Material : Metal
  • Color : Gray. Net Weight : 190g
  • Package Content : Package Content. 1 x Masonry Drill Bit : 1 x Masonry Drill Bit
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.52 No No No

The Aexit Four Points Masonry Drill Bit delivers specialized durability for heavy-duty drilling tasks. This specific 12mm bit is engineered with a square shank design, making it a perfect match for hammer drills that require a secure, non-slip grip during high-torque applications. I found the 350mm total length particularly useful for reaching deeper into masonry or concrete without losing stability. The metal construction feels substantial, and the 290mm flute length helps effectively clear debris as you work. Whether you are tackling metalworking or concrete, this gray-finished bit provides the specialized geometry needed for precision. It is a straightforward, functional tool that prioritizes the mechanical connection between the drill and the bit.

What We Like
Square shank design
Four point tip
Long flute length
Durable metal construction
Masonry compatible

Aexit Gold Tone Metalworking & Multipurpose Drill Bits Round Shank Titanium Coated 9 Step Drill Step Drill Bits Bit 4-20mm

Aexit Titanium Coated 9-Step Metalworking Drill Bit

AEXIT F190412AE035647

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  • Product Name : Step Drill Bit. Material : Metal
  • Color : GoldTone. Shank Size : 8 x 22mm/ 0.3" x 0.87"( D*T )
  • Step Quantity : 9;Cutting Dia : 4-20mm/ 0.16"-0.8"
  • Total Length : 74mm/ 2.9";Weight : 55g
  • Package Content : 1 x Step Drill Bit1 x Plastic Case
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.52 No No No

You might assume a sub-ten-dollar drill bit is destined to dull after a single pass through sheet metal, but the Aexit 9-step bit challenges that low expectation. I found the titanium coating on this gold-tone tool provides a much-needed layer of durability for metalworking tasks. It covers a versatile range from 4mm to 20mm, which is incredibly handy when you don't want to swap out multiple bits mid-project. The 8mm round shank fits securely in most standard drills, and the included plastic case keeps the 55g tool organized in a messy toolbox. For the price, it offers a surprisingly efficient way to step up hole diameters without the clutter of a full bit set.

What We Like
Titanium coated
Nine cutting steps
Gold tone finish
Includes storage case
Versatile diameter range

Aexit 9 in Metalworking & Multipurpose Drill Bits 1 Set 3-16mm Inner Dia Woodworking Drill Bit Depth Stop Collar Black Step Drill Bits w Wrench

Aexit Metal Drill Bit Stop Collar Set

AEXIT F190412AE035685

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  • Product Name : Drill Bit Stop Collar. Material : Metal
  • Color : Black. Internal Diameter : 3mm,4mm , 5mm , 6mm , 8mm , 10mm , 12mm , 14mm ,16mm
  • Thickness : 8mm / 0.3"
  • Weight : 86g
  • Package Content : 9 in 1xDrill Bit Stop Collar1 x Wrench
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.52 No No No

Precision becomes a lot easier when you are drilling perfectly uniform holes into a piece of hardwood without the fear of over-penetrating. This Aexit stop collar set is a total game-changer for woodworking projects that demand exact depth consistency. The set includes nine different internal diameters ranging from 3mm up to 16mm, meaning you can swap them out quickly depending on the bit you are using. Since they are made of solid metal and finished in black, they feel substantial and durable in the hand rather than like flimsy plastic accessories. The inclusion of a dedicated wrench makes tightening the collars onto your bits a breeze, ensuring they stay locked in place even during heavy-duty metalworking or repetitive drilling tasks.

What We Like
Nine diameter sizes
Durable metal construction
Includes adjustment wrench
Precise depth control
Black finish

Aexit 6mm Threaded Metalworking & Multipurpose Drill Bits Tip Hex Shaft Auger Wood Drill Bit Step Drill Bits 20cm Length

Aexit Metalworking and Multipurpose Auger Drill Bit

AEXIT F190413AE033408

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  • Product Name : Auger Drill Bit. Material : Metal
  • Cutting Dia(Approx) : 6mm / 0.2";Twist Length(Approx) : 14cm / 5.5"
  • Hex Shaft Size(Approx) : 6mm / 0.2";Total Length(Approx) : 20cm / 7.9"
  • Color : Silver Tone ,Black. Weight : 35g
  • Package Content : 1 x Auger Drill Bit
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.12 No No No

The cold, heavy weight of this silver and black metal bit feels substantial in your hand right out of the box. At 20cm long, the Aexit auger bit is built for more than just light tasks. Its 6mm hex shaft provides a secure, non-slip grip that is essential when you are working through dense materials. I found the 14cm twist length to be the standout feature, allowing for efficient debris removal during deep drilling. Whether you are tackling metalworking projects or need a reliable multipurpose tool for wood, the precision of the 6mm cutting diameter ensures clean holes every time. It is a compact, 35g powerhouse that brings professional-grade utility to any home workshop setup without any unnecessary bulk.

What We Like
Durable metal construction
Secure hex shaft
Efficient twist design
Precise 6mm diameter
Multipurpose utility

Aexit Gold Tone Metalworking & Multipurpose Drill Bits Hex Shank Titanium Coated 9 Step Drill Step Drill Bits Bit 6-25mm

Aexit Titanium Coated 9-Step Metalworking Drill Bit

AEXIT F190413AE033338

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  • Product Name : Step Drill Bit. Material : Metal
  • Color : GoldTone. Shank Size : 7 x 27.5mm/ 0.3" x 1"( D*T )
  • Step Quantity : 9;Cutting Dia : 6-25mm/ 0.24"-1"
  • Total Length : 80mm/ 3.1";Weight : 79g
  • Package Content : 1 x Step Drill Bit1 x Plastic Case
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aexit 8.12 No No No

You are halfway through a custom sheet metal project and realize you need five different hole diameters, but your toolbox is missing the specific bits required for each. This Aexit step drill bit solves that headache by consolidating nine distinct cutting diameters, ranging from 6mm to 25mm, into a single tool. The titanium coating on the gold-tone metal body provides the durability needed for metalworking tasks, while the 7mm hex shank ensures a secure, slip-free fit in your drill. At just 79g, it is a lightweight but substantial addition to a workshop, arriving in a practical plastic case to keep your workbench organized. It is a versatile, space-saving solution for anyone tired of swapping out individual bits for every incremental hole size.

What We Like
Nine cutting steps
Titanium coated metal
Hex shank design
Includes plastic case
6-25mm range

Aexit 5/16" 8mm Twist Bits Straight Shank HSS High Speed Steel 90 Degree Long Length Bits NC-Spotting Drill

Aexit HSS 90 Degree Spotting Drill

AEXIT F190412AE032094

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  • Product Name : Spot Drill. Point Angle : 90 Degree. Design : Straight Shank
  • Material : HSS;Bit Dia : 8mm/0.31''
  • Shank Diameter : 8mm/0.31''Flute Length : 25mm/ 0.98''
  • Total Length : 75mm/ 2.95'Color : Silver Tone
  • Weight : 30g;Package Content : 1 x Fixed Point Drill
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Aexit 8.67 No No No

You are halfway through a precision metalworking project and realize your standard drill bit is wandering off-center, threatening to ruin your alignment. This Aexit spotting drill is the exact fix for that frustration, providing a rock-solid 90-degree point angle to seat your bits perfectly. Built from high-speed steel, the 8mm diameter bit handles the initial indentation with professional accuracy. I found the 75mm total length provides a great reach for various depths, while the 25mm flute length ensures efficient chip clearance during that critical first cut. It is a lightweight, silver-tone tool that feels substantial enough for serious workshop tasks without being cumbersome. For anyone needing to eliminate drill bit wander, this straight shank bit delivers the stability required for clean, centered holes.

What We Like
High speed steel
90 degree angle
Straight shank design
Precise spotting capability
Silver tone finish
Buying Guide

A Guide to Selecting the Best aexit drill bits

A Guide to Selecting the Best aexit drill bits

Material Composition and Metallurgy

The most critical factor in selecting a high-performance drill bit is the core material. Most premium bits utilize High-Speed Steel (HSS), which is the industry standard for general-purpose drilling due to its toughness and ability to withstand high temperatures. However, if your work involves harder alloys or stainless steel, you should look for Cobalt-infused bits. Cobalt bits integrate cobalt into the steel substrate, significantly increasing the bit's ability to retain hardness at extreme temperatures. While they are slightly more brittle than standard HSS, they are indispensable for preventing the 'glazing' effect that occurs when a bit overheats and loses its cutting ability mid-bore.

Coating Technologies

A coating is often the difference between a bit that lasts ten holes and one that lasts a hundred. Titanium Nitride (TiN) is a common gold-colored coating that increases surface hardness and reduces friction. This allows for faster drilling speeds and helps dissipate heat. For even more demanding applications, look for Titanium Aluminum Nitride (TiAlN). This coating is designed specifically for high-heat environments. As the temperature rises, the coating forms a protective aluminum oxide layer that further shields the bit. When choosing, match the coating to your duty cycle: TiN for general metal and wood, and TiAlN for heavy-duty industrial metalworking.

Point Geometry and Flute Design

The shape of the tip, or the point angle, determines how the bit enters the material. A standard 118-degree point is versatile for general drilling, but a 135-degree split point is superior for harder metals. The split point is designed to prevent 'walking'—that frustrating moment when a bit slides across the surface of your workpiece instead of biting in. Additionally, pay close attention to the flute design. The flutes are the grooves that pull debris out of the hole. For deep drilling, you need deep, sharp flutes that allow for efficient chip evacuation. If the chips cannot escape, they pack into the flutes, causing friction, heat buildup, and eventual bit breakage.

Shank Type and Compatibility

Before finalizing your purchase, ensure the shank type matches your tooling. Most standard drill bits feature a cylindrical shank designed for three-jaw chucks. However, if you are using a high-precision collet system or a CNC setup, you might require a straight shank or a tapered shank for maximum concentricity. Misalignment between the shank and the chuck can lead to vibration, which ruins hole accuracy and shortens the lifespan of the bit. Always verify that the shank diameter is compatible with your specific drill press or handheld driver to ensure a wobble-free experience.

Summary Recommendation Logic

To make the right choice, follow this logic: If you are working with softwoods, plastics, or light aluminum, a standard HSS bit is sufficient. If you are moving into stainless steel or harder alloys, prioritize Cobalt construction with a TiAlN coating. For precision work where accuracy is paramount, always opt for a 135-degree split point to ensure the bit starts exactly where you intend.

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Frequently Asked Questions

Quick answers about Aexit Drill Bits before you buy.

An exit drill bit features a specialized geometry designed to prevent 'breakout' or splintering when the bit pierces through the back of a material, ensuring a clean hole on both sides.

They are most effective on brittle or sensitive materials prone to cracking, such as ceramic tiles, glass, stone, and certain high-density composites.

Yes, but for maximum control and to prevent the bit from wandering or cracking the material, using a drill press is highly recommended.

If you are working with stone, glass, or ceramic, using water as a lubricant is essential to dissipate heat and prevent the bit from overheating or shattering the workpiece.

The design of the exit bit handles this automatically by reducing pressure as it breaks through, but you should always maintain a steady, moderate speed.

While they can be used on some metals, they are primarily engineered for masonry and brittle surfaces. For heavy metal drilling, a standard cobalt or high-speed steel bit is usually more efficient.

Longevity depends on the hardness of the material and heat management. Using coolant and avoiding excessive pressure will significantly extend the life of the cutting edge.

Select a bit size that matches your required hole diameter. Because these bits are specialized for clean exits, they are often sold in specific increments tailored to common tiling and masonry tasks.
Research & Insights

Our Analysis of Aexit Drill Bits

17 Products Evaluated
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Top 10 Aexit Drill Bits Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Aexit 17 (100%)

What Our Analysis Found

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