Best Inch Twist Drill Bits in 2026

9/32" PILOT PT DRILL BIT

9/32" PILOT PT DRILL BIT

9/32" PILOT PT DRILL BIT

DURABLE AND PRECISE – Constructed with High Speed Steel (HSS) which provides a combination of hardness and toughness for wear resistance to take on intricate drilling tasks where accuracy is critical.

MULTIPLE USES – Gyros Wire Gauge Micro Drill Bits can be used with a wide range of hand and motorized tools for a better experience. These Straight Shank Mini Bits allow use with a wide variety of tool holding systems. Use with Gyros Mini Adaptor Chuck 45-01803 to use with most power rotary tools. Use with Gyros Swivel Head Pin Vise 97-01818 for all your hand drilling needs.

COMPLETE 11 PIECE SET - Gyros Mini Drill Bit Set comes complete with a range of small diameter twist drills sizes #50 (.0700”/1.778mm) through #60(.0400”/1.016mm) and therefore is preferred by Professional Craftsmen, Model Makers, Hobbyists, Jewelers, and Do-It-Yourself enthusiasts, and is a Must Have for all your drilling tasks.

HIGH QUALITY MATERIAL: 5% Cobalt High Speed Steel M35 provide extended tool life compared to ordinary drill bits. Durable and strong

TWIST DESIGN & PERFORMANCE: PRECISE 135°SPLIT POINT, gold oxide finish and round straight shanks. Prevent walking, clear chips and particles faster.Produced by precision fully ground which ensures chips move smoothly.

PROFESSIONAL & WIDELY USE: M35 Cobalt HSS is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, and also can be used for softer materials.

Durable and Precise – Constructed with Carbon Steel (CS) which provides a combination of hardness and toughness for wear resistance, making it ideal for complicated drilling applications requiring precision.

Multiple Uses – For a better experience, Gyros Wire Gauge Micro Drill Bits can be utilized with a variety of hand and motorized tools. Straight Shank Mini Bits are compatible with a wide range of tool holding systems. To use with most power rotary tools, use with Gyros Mini Adaptor Chuck 45-01803. For all your hand drilling needs, pair with the Gyros Swivel Head Pin Vise 97-01818

12 Micro Twist Drills – Professional Craftsmen, Model Makers, Hobbyist, Jewelers, and Do-It-Yourself enthusiasts prefer these Gyros Mini Drill Bits, which come complete with 12 (1 Dozen) small-diameter twist drills size #76 (.0200”/.508MM) providing quality and value for your money and are a Must-Have for all your drilling tasks.

Durable Construction - HSS material with black and gold coating increases lubricity, provides corrosion protection, and increases durability. Ensures longer tool life in multiple working conditions. Tapered web provides strength, durability and reduces breakage.

No Center Punch is Needed - 135° split point design for fast penetration with less pressure. Twist drill bit kit will not "Walk" or "Wander".

Parabolic Flute - Parabolic flute for better chip removal and reduced heat build-up.

Accuracy & Longevity - 135 degree split point starts drilling immediately requires less force and eliminates “walking” across the working surface. Tapered web provides strength, durability, and reduces breakage.

Three-Flat Design - Three flats on shank eliminate bit spinning in chuck. Our proprietary parabolic flute design brings optimal chip removal which reduces heat build-up.

Wide Range of Uses - Drill bits are built for general purpose applications, such as steel/copper/aluminum/zinc alloy/wood/plastics. Also, it's ideal for DIY projects and home maintenance. Durable and reliable quality.

Bright finish: Classic M2 High Speed Steel construction with Bright Finish for proven capability and durability.

Strength & Hardness: Made with HSS M2 steel, Rock wall Hardness Level HRC 62-63.

Package & Size: 12 Pieces in a plastic bag, Diameter 3/16 inch, Total length 3-1/2 inch, Working length 2-5/16 inch.

Bright finish: Classic M2 High Speed Steel construction with Bright Finish for proven capability and durability.

Strength & Hardness: Made with HSS M2 steel, Rock wall Hardness Level HRC 62-63.

Package & Size: 12 Pieces in a plastic bag, Diameter 5/16 inch, Total length 4 inch, Working length 2-3/4 inch.

Premium cobalt high speed steel construction for proven capability and durability to drill holes in wood, plastic, aluminum, copper, stainless, sheet metals and many other types of materials

Superior gold titanium and black nitride dual coating finish holds up lubricant better for smoother drilling, and is 80% more durable and corrosion resistant than regular black enamel finish

135° Split point design at tip increases cutting speed with self-centering feature and prevents drill walking or wobbling

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.

Bright finish: Classic M2 High Speed Steel construction with Bright Finish for proven capability and durability.

Strength & Hardness: Made with HSS M2 steel, Rock wall Hardness Level HRC 62-63.

Package & Size: 12 Pieces in a plastic bag, Diameter 5/32 inch, Total length 3-1/8 inch, Working length 2 inch.

【High Quality Material】：Manufactured from high-speed steel and coated in gold oxide, Yougfin jobber drill bits are able to withstand friction and heat so you can drill continuously without the bits heating up

【135-Degree Split Point & Twist Design】：The split point design increases the cutting edge on the tip, and the blunter 135° angle means more of the cutting edge touches the surface sooner. The grooves on the sides of the bits’ twisted shanks will bring metal shavings up and out of the hole as you drill

【Product Feature】: Twist drills are indicated in sizes. Assortment comes with a combined 29 sizes added：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"

✅【5% COBALT TWIST DRILL BITS SET】Made from M35 Cobalt Steel with Molybdenum and Cobalt added to form a hardened alloy, can measure up to 67 Rockwell hardness, cut faster, last longer, and last longer than normal HSS drill bits 12 times.

✅【19PCS METRIC DIRLL BITS SET】The set includes 19pcs of M35 cobalt steel twist drill bits: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7 mm, 7.5mm, 8 mm, 8.5mm, 9 mm, 9.5mm, 10 mm. Organized in a sturdy plastic storage case for easy transport to your workplace.

✅【TWIST DESIGN AND PERFORMANCE】Precise 135° SPLIT Point, Gold Oxide Surface and Round Straight Shank. Prevents walking and removes chips and particles faster. Precision fully ground to ensure smooth chip movement.

High Quality Material: The combination of high-speed steel black and gold oxide finish increases drill bit's corrosion resistance and wear resistance.

135°Split Point: The 135 degree fast cutting point is automatically centered and penetrates quickly with less pressure, fully ground drill bit with sharp and durable cutting edge. Twist design for bring metal shavings up and out of the hole drill.

Features: round straight shank, self-centering design prevents walking, fully ground twist design ensures a drilling performance by decreasing friction, easily for drilling materials includs stainless steel, cast iron, alloy, wood and hard plastics.

[ Use The Drill Bits Longer ] Every Twist Drill Bit has classic High Speed Steel (HSS) construction with a titanium coating that provides ultimate durability and longer drill bit service life through multiple uses without deformation.

[ Drill Precise Holes] The cutting edge of each titanium drilll bit is hardened and honed for sharpness. It also features a chatter-free design with staggered cutting teeth to ensure precise countersinking and clean, smooth holes.

[ Have Every Size You Need ] This universal drill bit set covers sizes: 28 x 3/64", 27 x 5/64", 20 x 1/8", 10 x 5/32", 12 x 3/16", 8 x 15/64", 8 x 9/32", 3 x 5/16", 2 x 23/64", 1 x 1/2", 27 x 1/16", 27 x 3/32", 20 x 9/64", 10 x 11/64", 10 x 7/32", 12 x 1/4", 2 x 19/64", 2 x 21/64", 1 x 3/8".

【Drill Bit Set】：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 M35 Cobalt Drill Bit Sets meets all your needs

【Cobalt 5% HSS】: High-Speed Steel M35(Cobalt 5%)cobalt 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 twist drill bit is 135°split point with a round straight shank, self-centering prevents walking, and makes drilling precise and faster. Double back Angle process and full grinding process is adopted fully ground process twist design helps clear particles faster, decreases friction and heat for a cooler drilling performance

115 pc. Set Premium High Speed Steel Heavy Duty NAS 907B 135-Degree Split Point

135-Degree Split Point, 1/16 -1/2 by 64ths, A - Z, #1 - #60

Precision ground point, flutes, body, clearance and drill diameter for ultimate accuracy and performance

High Quality Material - Versatile general-purpose drill bit set, High Speed Steel, black and gold finish resists corrosion and increases the hardness of the drill bit.

135-degree Point Tip & Twist Design - Increases cutting speed with self-centering and prevents walking, clears chips and particles faster. Produced by precision fully ground which ensures chips move smoothly.

Professional and Widely Use - Great drill bits set for metal/ wood/ plastic. Suitable for Home DIY, and General Building/ Engineering/ Woodworking Use.

High-Speed Steel Construction: Made from Titanium Coated HSS-4341. The Twist power tool drill set with heat resistant and wear resistance can provide longer tool life, suitable for drilling high hardness materials

Multiple Use: Wire Gauge Micro Drill Bits are ideal for gold, silver, wood, hard and soft metals, plastic, PVC, beads, and jewelry. it can be used with a wide range of hand and motorized tools for home DIY, workshop or vehicles repair shop.

Practical Design: The Rotary hand tools designed with 135° split point are very lightweight, making cutting faster and less powerful, preventing walking and cutting stainless steel more precisely, thanks to its precision grinding inclined blade design.

SIZE INCLUDED: Drill Set 99 Pcs include 1/16" 16 Piece, 5/64" 16 Piece, 3/32" 15 Piece, 7/64" 10 Piece, 1/8" 10 Piece, 9/64“ 8 Piece, 5/32" 8 Piece, 11/64" 3 Piece, 3/16" 3 Piece, 13/64" 2 Piece, 7/32" 2 Piece, 1/4" 2 Piece ,5/16 2 Piece, 3/8" 2 Piece. which can make your work easier.

STRENGTH & DURABILITY: Made with HSS , Rockwall Hardness Level. Each of our HSS drill b has been coated in Titanium as it is well reported to resist heat and friction giving you a quality finish and a longer lasting drill bit. Quality is as good as any major brand such as drill bit set.

METAL STORAGE BOX: Your order comes in a handy metal box with handle for all 99 bits, each drill bits have its own clearly labelled designated storage spot which makes it the best craftsman drill bit kit.

✅【M35 TWIST HEX DRILL BITS SET】Made from M35 Cobalt Steel with Cobalt added to form a hardened alloy, can measure up to 67 Rockwell hardness, cut faster, last longer, and last longer than normal HSS drill bits 12 times.

✅【13PCS SET COMBINATION】13 most common sizes (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") to meet all needs, a drill holder with size index is included in the set for easy storage and organization.

✅【FULL GRINDING PROCESS AND 135° SPLIT POINT】Precise 135° SPLIT Point, Gold Oxide Surface and Round Straight Shank. Prevents walking and removes chips and particles faster. Precision fully ground to ensure smooth chip movement.

Classic HSS construction with titanium coating for capability and durability. The cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean.

Precise 118° split point, gold oxide finish and round straight shanks. Prevent walking, clear chips and particles faster.

2 flutes form helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process.

✔️【DRILL BIT DIMENSION】:1/8"(Diameter) x 1-5/8"( Flute Length) x 2-3/4"(Overall Length)

✔️ 【COBALT MATERIAL】: HSS(M35) Cobalt Steel Enable Long Drilling Life and Fast Drilling Performance

✔️ 【SURFACE TREATMENT】: Gold Oxided Ember Finished Treatment Keeps High Hardness of Body Shank

✅【5% COBALT TWIST DRILL BITS SET】Made from M35 Cobalt Steel with Molybdenum and Cobalt added to form a hardened alloy, can measure up to 67 Rockwell hardness, cut faster, last longer, and last longer than normal HSS drill bits 12 times.

✅【13PCS SAE DIRLL BITS SET】The set includes 13pcs drill bits. Organized in a sturdy plastic storage case for easy transport to your workplace.

✅【TWIST DESIGN AND PERFORMANCE】Precise 135° SPLIT Point, Gold Oxide Surface and Round Straight Shank. Prevents walking and removes chips and particles faster. Precision fully ground to ensure smooth chip movement.

Cobalt drill bits: Classic M2 High Speed Steel construction with Black and Gold finish for proven capability and durability.

Hardness: M2 Twist drill bits’ Rock wall Hardness Level HRC 62-63.

Package & Size: 12 Pieces drill bits in a plastic bag, Diameter 5/16 inch, Total length 4-1/2 inch, Working length 3-3/16 inch.

Cobalt drill bits: Classic M2 High Speed Steel construction with Black and Gold finish for proven capability and durability.

Hardness: M2 Twist drill bits’ Rock wall Hardness Level HRC 62-63.

Package & Size: 12 Pieces drill bits in a plastic bag, Diameter 7/32 inch, Total length 3-3/4 inch, Working length 2-1/2 inch.

Bright finish: Classic M2 High Speed Steel construction with Bright Finish for proven capability and durability.

Strength & Hardness: Made with HSS M2 steel, Rock wall Hardness Level HRC 62-63.

Package & Size: 12 Pieces in a plastic bag, Diameter 7/64 inch, Total length 2-5/8 inch, Working length 1-1/2 inch.

✅【5% COBALT TWIST DRILL BITS SET】Made from M35 Cobalt Steel with Molybdenum and Cobalt added to form a hardened alloy, can measure up to 67 Rockwell hardness, cut faster, last longer, and last longer than normal HSS drill bits 12 times.

✅【13PCS SET COMBINATION】1PC×1/16", 1PC×5/64", 1PC×3/32", 1PC×7/64", 1PC×1/8", 1PC×9/64", 1PC×5/32", 1PC×11/64", 1PC×3/16", 1PC×13/64", 1PC×7/32", 1PC×15/64", and 1PC×1/4", one piece for each size, a drill holder with size index is included in the set for easy storage and organization.

✅【QUICK CHANGE HEX SHANK】1/4 inch hex shank is easier and safer to install in all power tools, especially for locking quick change chucks without slipping and falling off.

Bright finish: Classic M2 High Speed Steel construction with Bright Finish for proven capability and durability.

Strength & Hardness: Made with HSS M2 steel, Rock wall Hardness Level HRC 62-63.

Package & Size: 12 Pieces in a plastic bag, Diameter 9/32 inch, Total length 4-1/4 inch, Working length 2-15/16 inch.