Best Inch Twist Drill Bits in 2026

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This product is highly durable

This product is manufactured in China.

【10Pcs 1/4" TWIST DRILL BITS】10Pcs - 1/4”(Dia 6.35mm) x 2-3/4”(Flute Length 69.85mm) Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.

【PREMIUM HSS TITANIUM Coating】Industry grade 4341 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. Titanium coating increases wear-resistance and durability.

【FULLY GROUND PROCESS & 135° SPLIT POINT】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° Split Point with straight shank prevents walking and makes drilling precise. No center punch is needed.

Sometimes bigger is better and when it comes to drilling or boring into thick material, bigger is definitely better. Introducing the Fulton high speed steel extra long brad point drill bit set. Each bit measures around 12 inches in total length to provide you with enough drilling length to tackle most any project you can throw at them.

Many times when working around the house or out on the job site, we come across a situation where we need to drill through thicker material like a 6 x 6 or 4 x 4 when building things like an privacy fence or even rough building applications. These Fulton extra long brad point drill bits are perfect for these situations!

Made from high speed steel, these bits are ideal for many different project types and materials. Drill into MDF, 4 x 4’s, 6 x 6’s, PVC, Resin’s, Composites, Plywood and more. Since each bit has a sharp (brad point) tip, it is recommended that you do NOT use these bits to drill into metal objects.

【M35 Cobalt High Speed Steel】Industry grade M35 high speed steel drill bit set, much harder than HSS used in other similar drill bits set. These drill bits contain 5% Cobalt, which increases wear-resistance and durability.

【Most Commonly-Used 20 Sizes】A complete combo set of 31 jobber length industrial drill bits for metal drilling (1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64",7/32",15/64",1/4", 17/64", 9/32", 5/16", 11/32", 3/8", 7/16", 1/2") . They fit the majority of power drill currently on the market and comes with a portable plastic case for easy storage and organization.

【Precise & Efficient Drilling Performance】✔ Fully Ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. ✔ 135° Split Point with round straight shank prevents walking and makes drilling precise and faster. No center punch is needed.

【M35 COBALT HIGH SPEED STEEL】1/8" drill bits for metal made from M35 Cobalt High Speed Steel and contain 5% Cobalt, which increases wear-resistance, durability and extra longer life span, so that the drill bits last through multiple uses

【135° SPLIT POINT】135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. Straight shank of this cobalt steel drill bit allows for firmly holding and accurate centering and makes drilling precise and faster

【FULLY GROUND PROCESS】Fully ground spiral groove design clears particles quickly, decreases friction and heat for faster drilling performance

High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance

Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge

Round shanks allow use with a wide variety of toolholding systems

HIGH QUALITY CARBIDE MATERIAL: The center drill bit is made of HSS M2. Compared with ordinary high speed steel, M2 material can prolong the service life, enhance wear resistance and remove chippings clearly. HSS are harder and tougher than other materials.

PLAIN STYLE 60°ANGLE: Center drill bit can be used to process the centering hole and countersink of general material. Plain style 60°angle can guide twist drill bits to process holes.

SPIRAL FLUTE: Spiral groove helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process. The precision ground surface is corrosion resistance to achieve better using effects and prolong the working life.

Features: Cutting Edge Diameter : 12.5mm / 0.49"; Shank Diameter : 12.5mm / 0.49"; Cutting Edge Length: 102mm / 4.02"; Total Length : 150mm / 5.91"; Cutting Direction: Right Hand

High Speed Steel Tool: High-speed steel straight shank tool is good for most general purpose applications, offering a combination of hardness and toughness for wear resistance

Sharp Spiral Flutes: Provide neat and smooth cuts. High cutting edge strength, fast cutting speed. Spiral groove facilitates the export of metal chip, saving time and effort in operation.

Features: Cutting Edge Diameter : 8mm / 0.31"; Shank Diameter : 8mm / 0.31"; Cutting Edge Length: 75mm / 2.95"; Total Length : 115mm / 0.59"; Cutting Direction: Right Hand

High Speed Steel Tool: High-speed steel straight shank tool is good for most general purpose applications, offering a combination of hardness and toughness for wear resistance

Sharp Spiral Flutes: Provide neat and smooth cuts. High cutting edge strength, fast cutting speed. Spiral groove facilitates the export of metal chip, saving time and effort in operation.

TOP QUALITY CARBIDE MATERIAL: The center drill bit is made of Top quality HSSCO M35. Compared with ordinary high speed steel, M35 material can prolong the service life, enhance wear resistance and remove chippings clearly .Top quality Tatinum plated .

PLAIN STYLE 60 ANGLE: Center drill bit can be used to process the centering hole and countersink of general material. Plain style 60째angle can guide twist drill bits to process holes.

SPIRAL FLUTE: Spiral groove helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process. The precision ground surface is corrosion resistance to achieve better using effects and prolong the working life.

135°Split point, straight shank, sharp spiral groove, coffee bronze coating.

3/16" inch Diameter 4.8mm for reference. Real exact size is 4.76mm. 3/16" equals to 4.7625mm, this drill bit diameter is almost real 3/16".

Flute length 2 1/16"(52mm), total length 3 7/16"(86mm).

【5Pcs 3/8" Cobalt Drill Bits】5Pcs - 3/8”(Dia 9.26mm) x3-5/8”(Flute Length 92.08 mm) Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.

【M35 Cobalt High Speed Steel】Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. These drill bits also contain 5% Cobalt, which increases wear-resistance and durability.

【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed.

★【Premium Bright Finish 2/Pack】 multi-purpose solid carbide drill bits provide better rigidity than high speed steel bits. It is extremely heat resistant and used for high speed applications. Our tungsten carbide (WC) bits has the advantage of cutting metal either "wet" or "dry" and they provide solutions for many businesses such as aerospace drilling jobs for aircraft mechanics, precision machining, hobby supply, etc.

★【Recommended For Use On】 aircraft metals chrome titanium inconel stainless steel Alloys Steel Low-Medium-High Carbon Steel Aluminum Copper Glass Plastics Composite Materials Cast Iron -- Our Carbide drills stay sharp many times longer than traditional steel bits making them ideal for the toughest of applications!

★【Optimal Design for Metal Work】 118° four facet point angle minimizes drill wander and assures accurately sized holes. Our jobber length, precision ground carbide drills are designed for high feed rates with good chip disposal. smooth finish on the bits increases chip flow. Spiral flutes are constructed with a higher flute angle to remove chips more easily.

High Quailty Material: Manufactured from Industry grade M35 High Speed Steel with 5% Cobalt added, usually giving better Heat, Wear and Chip Resistance and Long Tool Life.

135° Split Point: The 135° fast cutting point is automatically centered and prevents walking, clears chips and particles faster. Making drilling precise, reducing friction and heat for a smooth chip movement.

Professional Drill Bits: gold oxide finish and round straight shanks， fully ground spiral groove design with high grinding accuracy, for cutting stainless steel, steel and cast iron as well as wood, aluminum alloys and other metals.

Great product and very good quality. Made from M35 Hight-speed Steel and 5% Cobalt.Size:13/64inch,Total lengh:3.34inch.Work lengh:1.96inch

The blades are very sharp and they drill into metal fast.Including Steels,Cast Iron ,Copper,Galvanized Pipe,Aluminum Alloy,Wood, Plastic and Other Hard Metals.If you need to drill hard metal, Highly recommended use drilling press contral the RPM.Not for Glass or Ceramic Materials.

Full-grinding Nitriding,Good Wear resistance,Durable,Spiral groove design, well chip removal performance.135 Tip & Twist Design,Increases cutting speed with self-centering and prevents walking.

【Titanium Drill Bit Sets】：Includes 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64", 1/2". This 29 PCS metal drill bit set meets all your needs

【Material】: High-Speed Steel M2 Titanium drill bit set can effectively drill tough and high tensile materials. The metal drill bit is especially suitable for cutting hard metals, such as stainless steel, cast iron, superalloys, titanium alloys, rigid plastics, and wood, It can also be used in soft materials

【Characteristics】: The jobber drill bit is 135°split point with a round straight shank, self-centering prevents walking, makes drilling precise and faster. Spiral design and full grinding process is adopted fully ground process twist design helps clear particles faster, decreases friction and heat for a cooler drilling performance

Material : Diameter Size of Micro HSS Drill Bit Set is 2.5mm.

Package Include: 10 pcs metal drill bits fit for the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.

Quality Material: Cobalt drill bit set adopts HSS-4341, which is durable, strong and practical, long service life, heat resistant and wear-resistant; The cutting edge of drill bit is hardened and honed, cutting precision, no shaking.

Specification: Shank Type: Round Shank; Tool Flute Type: Spiral; Twist Drill Bits Diameter: 0.5mm-2.3mm; Shank Diameter: 2.35mm / 0.09-inch; Total Length: 45mm

Material: Made of high-speed steel, with high hardness and stable operation. The drill bit is titanium coated, which has higher wear resistance and lower friction coefficient. Not easy to accumulate chips and long service life.

Cooling: Adapt to several kinds of cooling conditions, for example oil mist, water, oil, air cooling.

【Titanium Drill Bit Set】: Include Includes 16pcs 1/16", 16pcs 5/64", 15pcs 3/32", 10pcs 7/64", 10pcs 1/8", 8pcs 9/64", 8pcs 5/32", 3pcs 11/64", 3pcs 3/16", 2pcs 15/64", 2pcs 7/32", 2pcs 1/4", 2pcs 5/16", 2pcs 3/8" Various sizes of drill bits make you fully qualified for various tasks

【Material】: High-Speed Steel Titanium drill bit set can effectively drill tough and high tensile materials. The metal drill bit is especially suitable for cutting hard metals, such as stainless steel, cast iron, superalloys, titanium alloys, rigid plastics, and wood, It can also be used in soft materials

【Characteristics】: The jobber drill bit is 118°split point with a round straight shank, self-centering prevents walking, and makes drilling precise and faster. Spiral design and full grinding process is adopted fully ground process twist design helps clear particles faster, and decreases friction and heat for a cooler drilling performance

【10Pcs 1/4" HEX DRILL BITS】10Pcs - 1/4”(Dia 6.35mm) x Flute Length 70mm Metal Drill Bits. Come with a portable plastic case for easy storage and organization.

【PREMIUM HSS TITANIUM COATING】Industry grade 4341 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. Titanium coating increases wear-resistance and durability.

【FULLY GROUND PROCESS & 135° SPLIT POINT】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° Split Point with straight shank prevents walking and makes drilling precise. No center punch is needed.

Material: Carbon steel; 1 Set Include 8 Piece(Diameter:3mm 4mm 5mm 6mm 7mm 8mm 9mm 10mm)

3-10mm set of brad point drill bits, Wood drill bits, Spiral twist drill mill 8 Piece, straight round shank, Edge sharpness

Suitable for soft wood, hard wood, Beech, Walnut, Elm, Nylon, PU, Acrylic

PREMIUM QUALITY - These 3 point drill bits are made of high carbon steel,which High hardness and edge sharpness for fast cutting, superior cutting power and longer useful life.

BRAD POINT DESIGN - The tip of these brad point designed to prevents drill bit from skipping or walking when without mark,which allows you pinpoint the mark and can penetrate surface quickly. Extra-wide flutes deliver effective and fast chip removal with less effort during drilling.

MEET YOUR NEED - With the 3-10mm wood drill bits we offered, you can process 8 different diameter holes(1/8", 5/32", 3/16", 1/4", 9/32", 5/16", 11/32", 3/8") , which meet your different drilling requirement.

MEET YOUR NEED - With the 3-10mm wood drill bits we offered, you can process 8 different diameter holes(1/8", 5/32", 3/16", 1/4", 9/32", 5/16", 11/32", 3/8") , which meet your different drilling requirement.

High Quality Material Classic High Carbon Steel Material for fast cutting against tough wood material. High hardness, offer superior cutting power and durable.

Prevents drill bit from skipping or walking when without mark,which allows you pinpoint the mark and can penetrate surface quickly. Extra-wide flutes deliver effective and fast chip removal with less effort during drilling.

Material: Made of alloy steel, it provides a combination of hardness and toughness to improve wear resistance, and undertakes complex drilling tasks in places where accuracy is crucial.

Function: All-grinding spiral groove design can quickly remove particles, reduce friction and heat, and thus improve drilling performance.

No center punch needed: The 135° fast cutting points is self-centering, and it can quickly penetrate with less pressure.

【SELF CENTERING】Would you feel trouble by reason that the drill could not precise position easily during working? No worries! Designed with 135° split point, BOEN drill bit set features the characteristics of preventing walking and cuts stainless steel more fasterly. The handle is straight and round, which means that the high-speed drill can be compatible with all kinds of equipment.

【Convenient Spiral Groove】 A spiral groove design of drill bit set can quickly remove particles while working, reduce friction and heat, thereby improving drilling performance. With it, your powerful machine can easily do DIY, home maintenance, repairs, and more.

【Superior Material】M35 high-speed drill is durable, safe and eco-friendly. The 5% cobalt content extends the tool life and ensures higher heat resistance of the drill. Compared with ordinary drill, it is not only for good performance but also for more important thing--high efficiency!

【20PCS 1/4" Cobalt Drill Bits】20PCS - 1/4"(Drilling Diameter) x2-3/4"(Flute Length)x4"(Overall Length) Metal Drill Bits. This drill bit fits the majority of power drill currently on the market.

【M35 Cobalt High Speed Steel】Industry grade M35 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. These drill bits also contain 5% Cobalt, which increases wear-resistance and durability.

【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed.

【Specification】13 cobalt hexagonal shank bits, including 1.5, 2.0, 2.5, 3.0, 3.2, 3.5, 4.0, 4.5, 4.8, 5.0, 5.5, 6.0, 6.5 mm, with 1/4 hexagonal shank.

【Advantages】The hexagonal handle specially made for quick replacement of drill bits is an upgraded version. Compared with the ordinary hexagonal handle, it shows excellent performance, prevents the drill bit from peeling off the hexagonal handle, and effectively keeps the hexagonal handle locked during impact drilling. Cobalt drill bit is more durable than titanium drill bit.

【Complete grinding process and 135 ° points】 The fully ground spiral groove blowdown waste quickly reduces friction and heat, thus providing faster, cooler and more efficient drilling performance; 135 ° split point with straight handle can prevent slipping and make drilling stable and accurate. No center punch is required.

6 Most Common Size - 3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm, to satisfy all your needs. This drill bits set fits the majority of power drill currently on the market.

Premium Quality - Made of HSS Material with Titanium Coated, the drill bits edge sharp, faster with less effort. Provides 2X life over standard impact drill bits.

Fully Ground Spiral Groove Design - Quickly decreases friction and heat for a faster and cooler drilling performance. 135° Split Point with straight shank prevents walking and makes drilling precise and faster.

[SIZE] - 1mm diameter, 11mm length twist drill bit with 0.7mm shank.

[MATERIAL] - Diamond coated high speed steel(HSS) is made by spiral technology, has both toughness and hardness, is not easy to break. The drill bit is sharp, and is easy for chip removal.

[APPLICABLE MACHINE] - Widely used in rotary tool such as hand drills, drill press, flex shafts, bench drill and hanging mill.

Material: Classic High Speed Steel 4241 for fast cutting against tough wood material. High hardness, offer superior cutting power and durable.

Optimized spurs insure fast and easy cutting of the wood fibers before the hole is drilled.

Quick Change: 1/4 inch(6.3mm) hex shanks are compatible with both standard and quick change Chuck Drivers, fit into most power tools more easily and securely. providing versatility in drilling needs.