The Best 8Mm Drill Bit of 2025 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best 8Mm Drill Bit of 2025. Check our ranking below.
2,358 Reviews Scanned
Rank No. #1
8mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 1pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO
- Cobalt Steel - Manufactured From M35 5% Cobalt Steel, With Molybdenum And Cobalt Added To Creates A Hardened Alloy, Measuring Rockwell Hardness Up To 65, For Much Faster Cutting And Extra Longer Life Span, With Up To 10 Times When Compared with an Average HSS Drill Bit.
- HSS Titanium Coating - Classic HSS Construction With Titanium Coating For Capability And Durability. The Cutting Edge Is Hardened And Honed For Sharpness.
- Flutes Form - 2 Flutes Form Helps Clear Chips And Debris Away From The Bit, Decreasing Friction And Heat For A Faster, Cooler Drilling Process, Chatter-Free Design With Staggered Cutting Teeth Ensure The Precise Countersinking And Hole Smooth Clean.
- Straight Shank And 135° Point Angle - Straight Shank For Standard Drill Chucks And Collet Chuck To Hold Firmly, Assuring Accurate Centering; Helical Flute For Swarf To Easily Get Out; Ideal For General Purpose Drilling Applications.
- For Metalworking - Particularly Successful In Cutting Through Hard Metals(Hardness Less Than Hrc38°) Such As Stainless Steel And Cast Iron, Although They Can Be Used For Softer Materials Like Copper And Aluminium, Too. Not For Hardened Steel And High Carbon Steel.
SaleRank No. #2
Fisch Brad Point Drill Bits (8mm x 117mm) - Premium Drill Bits for Soft, Hard, Veneered and Laminated Wood, MDF and Acrylic Glass - Beveled Edge for Fast, Easy Cutting - FSF-004035 - Made in Austria
- PROFESSIONAL GRADE WOODWORKING: Specifically designed for woodworkers looking to achieve clean and accurate holes with minimal effort. The sharp Chrome-vanadium coated brad point bit stays cooler which allows the bit to stay sharper longer.
- PRECISION BRAD POINT TIP: Features optimized spurs and beveled cutting edge for fast, smooth cutting and reduced tear-out in various wood types. Softwoods - Pine, Fir, Hardwoods - Oak, Maple, and laminated woods, as well as MDF and acrylic glass.
- ENHANCED DRILLING SPEED AND DESIGN: Aggressive cutting edge design dramatically reduces drilling time, performing faster than softer metal bits. The dual cutting edges maintain cleaner, smoother holes, even during heavy use in hardwood and softwood.
- IMPROVED FINISH: Provides cleaner, sharper results by minimizing tear-out, essential for high-quality woodworking and fine finishes. Ideal for professional woodworking, cabinetry, and home repairs.
- MADE IN AUSTRIA - Machined and packaged in Austria
Rank No. #3
Hymnorq 8-Piece Metric Twist Drill Bit Set (3mm-10mm) with Indexed Storage Case, Budget-Friendly HSS 4241 Roll-Forged Bits with Anti-Rust Gold Finish for Wood, Plastic & Soft Metals
- ESSENTIAL SIZES & ORGANIZED CASE: Includes 8 frequently used metric whole-number sizes: 3, 4, 5, 6, 7, 8, 9, and 10mm. Neatly organized in a durable, bright yellow plastic indexed storage case for easy transportation, secure storage, and instant size identification.
- BREAK-RESISTANT & HAND-DRILL FRIENDLY: Manufactured using a hot roll-forged process, these bits retain their continuous metal grain structure. This provides superior toughness and flexibility, allowing them to absorb the slight side-loads and wobbles typical of standard hand drills without easily snapping.
- OPTIMIZED FOR SOFT MATERIALS: Crafted from High-Speed Steel (HSS) 4241, these bits are specifically designed for efficient, clean drilling into wood, plastics, PVC, and thin/soft metal sheets like aluminum. (Note: Not recommended for hard steel, thick iron plates, or masonry).
- ANTI-RUST GOLD FINISH: Featuring a decorative gold-toned coating that effectively prevents rust and extends the shelf life of the bits. This protective finish provides excellent corrosion resistance, ensuring your tools stay in great condition while sitting in your garage or toolbox.
- UNIVERSAL FIT & GREAT VALUE: Features a standard 118-degree point angle and straight round shank design for easy, secure attachment to all standard drill chucks. An incredibly cost-effective and reliable choice for general home maintenance, DIY projects, and everyday repairs.
Rank No. #4
uxcell 2pcs Straight Shank Twist Drill Bits 8mm Gold Titanium & Black Nitride Coated High Speed Steel (HSS) 4341 with 8mm Shank for Stainless Steel Alloy Metal Plastic Wood
- Drill Bit Size: Cutting Edge Diameter : 8mm / 0.31"; Shank Diameter : 8mm / 0.31"; Cutting Edge Length: 75mm / 2.95"; Total Length : 115mm / 0.59"; Split Point: 135 Degree; 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.
- Black & Gold Finish: Gold titanium and black nitride dual coating can apply lubricant better for smoother drilling and is more durable and corrosion resistant
- Versatile Uses: For use in a wide range of stainless steel, aluminum alloy, iron, copper, brass, wood, plastic, and other metal materials. Suitable for hand drills, bench drills, etc. Clamping stable round shank design, not easy to shake, tight clamping without slipping
Rank No. #5
Hymnorq 8-Piece M35 Cobalt Steel Drill Bit Set (3mm-10mm), Dual Twist Flute, Bronze Finish, 135° Split Point, with Plastic Index Case, Ideal for Metals Like Stainless Steel Iron Aluminum and Copper
- Durable Cobalt Construction: Crafted from 5% cobalt steel for exceptional heat and wear resistance, ensuring a longer lifespan even under heavy use.
- 135° Split Point Design: Self-centering tips reduce walking and ensure fast, accurate starts, even on hard materials.
- Versatile Size Range: Includes 8 drill bits ranging from 3mm to 10mm in 1mm increment , accommodating a variety of drilling tasks and applications.
- Ideal for Tough Materials: Designed to drill through stainless steel, cast iron, titanium, and other hard metals with ease.
- Indexed Case: Portable plastic case keeps bits organized and protected, making it easy to select the right size.
Rank No. #6
Hex Shank Cobalt Metric Drill Bit Set 15 PCS (1.5mm-8mm), Quick Change High Speed Steel Impact Driver Hex Drill bits for Metal, Steel, Wood, Plastic, Aluminum Alloy
- 【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.
- 【Quick replacement】 1/4-inch (about 0.6cm) hexagonal handle base is suitable for most pistol drilling and drilling presses, which is easier and safer to install without slipping and falling off.
- 【Multi purpose】 It is suitable for small drills of wood, plastic, steel plate (≤ 5mm), aluminum alloy and other soft metals. Ideal for DIY projects, home maintenance and repair, not for glass, ceramics or concrete drilling.
Rank No. #7
Fisch Brad Point Drill Bit Set– for Wood, MDF & Acrylic – Fast, Clean Cuts with Beveled Edge - Ideal for Pros & DIY - FSF-134893 - Made in Austria, 8 Pcs Set (3mm - 10mm) in Blister Pack
- Professional Grade Drill Bit Set: This drill bit set delivers clean, accurate holes with minimal effort, making it a reliable addition to any woodworking tool set. The chrome-vanadium coating keeps the bit cooler and sharper for longer
- Precision Brad Point Tip Accuracy: Designed with optimized spurs and a beveled cutting edge, this drill bit ensures smooth entry and reduced tear-out across softwoods, hardwoods, MDF, laminated wood, and even acrylic glass
- Enhanced Drilling Speed Design: The aggressive cutting geometry provides faster performance than standard metal bits, allowing this drill bit set alternative to maintain smooth, clean holes during demanding woodworking tasks
- Improved Finish Quality: Engineered to minimize tear-out for cleaner, sharper edges, this drill bit is ideal for cabinetry, fine woodworking, furniture building, and precise home repair projects requiring a high-quality finish
- Made In Austria Craftsmanship: Expertly machined in Austria, this premium drill bit offers exceptional durability and consistency, making it a dependable piece in any professional or DIY woodworker’s tool set
Rank No. #8
TA-VIGOR 2pcs 8mm Straight Shank Twist Drill Bit, High Speed Steel M35 Cobalt Twist Drill Bit with 8mm Shank for Drilling Stainless Steel Metal Plastic Wood
- 【Size & Package】Cutting Edge Diameter : 8mm / 0.31"; Shank Diameter : 8mm / 0.31"; Cutting Edge Length: 75mm / 2.95"; Total Length : 115mm / 4.53"; Package includes 2pcs 8mm straight shank twist drill bit.
- 【High Speed Steel】Made of HSS cobalt material, the drill bit is hard enough, anti-bending and will not fracture easily. The surface coating can better protect the drill bit sets from corrosion and expand their longlife.
- 【Straight Shank】Round shank is suitable for a wide variety of toolholding systems. Universal flute and overall length allow minimal adjustment during work.
- 【Double Cutting Edge】 The sharp cutting edge promotes faster as well as preciser drilling. Its spiral flute assure fast heat dissipation, protecting the twist drill bit from high temperature damage and getting rid of glitches or scrap.
- 【Wide Applications】Our twist drill bits have various sizes and can meet your needs for drilling glass, stainless steel, metal and wood materials, etc.. They can be clamped to manual and electric drilling tools, widely used in household or processing industries.
Rank No. #9
uxcell Straight Shank Twist Drill Bits 8mm Gold Titanium & Black Nitride Coated High Speed Steel (HSS) 4341 with 8mm Shank for Stainless Steel Alloy Metal Plastic Wood
- Drill Bit Size: Cutting Edge Diameter : 8mm / 0.31"; Shank Diameter : 8mm / 0.31"; Cutting Edge Length: 75mm / 2.95"; Total Length : 115mm / 0.59"; Split Point: 135 Degree; 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.
- Black & Gold Finish: Gold titanium and black nitride dual coating can apply lubricant better for smoother drilling and is more durable and corrosion resistant
- Versatile Uses: For use in a wide range of stainless steel, aluminum alloy, iron, copper, brass, wood, plastic, and other metal materials. Suitable for hand drills, bench drills, etc. Clamping stable round shank design, not easy to shake, tight clamping without slipping
Rank No. #10
Cobalt Drill Bit Set, M35 Twist HSS Drill Bits Straight Shank, 2mm High Speed Steel Drill Bits for Drilling in Hard Metal, Stainless Steel, Cast Iron (8mm)
- Material - HSS Cobalt high speed steel for super abrasive resistance in tough metals, improve much higher heat resistance because of cobalt steel's high red hardness.
- Durable - HSS Cobalt Drill Bit provide strong durable performance compared to typical hss drill bits.
- Easy to Carry - The twist drill bits are housed in plastic case for easy storage, easy to carry out homework.
- Multi-purpose Use - HSS Drill Bits are successful in cutting hard metals such as stainless steel, copper, aluminum alloy, and also can be used for softer materials.
Last update on 2023-09-13 / Affiliate links / Images from Amazon Product Advertising API
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