10 Best Mechanics Length Drill Bits
#1 Best Pick
Hi-Spec Drill Bit Set: 99pc Complete HSS Mixed Bits Kit. 1 to 10mm Titanium Coated High Speed Steel Drill Bits for Metal, Wood & Plastic. All in a Box Case
Brand: Hi-Spec
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- GET DRILLING DONE: For everyday DIY jobs, drill quickly and accurately in soft metals eg. aluminium, mild steel, wood, plasterboard/drywall and plastics. NB. Not suited for heat-treated or hardened steel
- 14 METRIC SIZES: The most-used sizes of round-shank twist drill bits for the electric drill driver. 99pc x Metal Drill Bits: 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 8, 10mm
- BETTER HSS STEEL: Using High-Speed Steel alloy (HSS4241), they cut faster, withstand higher temperatures and retains hardness for longer than ordinary high-carbon steel bits
- LONG-LIFE TITANIUM COATING: Their golden vapour-deposited Titanium Nitride coating increases surface hardness and lubrication properties. Get improved wear resistance and sharpness with reduced friction and sticking
- IN A COMPACT BOX CASE: Take them anywhere in the slim storage tray case - separated into compartments with a protective foam insert. Sizes are handily printed under the lid which is closed tightly by a steel-catch
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#2 Best Value
Extra Long Twist Drill Bit Set, 10 Pcs 150mm Straight Shank Drill Bit Tool High Speed Steel Straight Shank Tool Sets 2 3 3.5 4 5mm Drill Bits Kits for Wood and Metal
Brand: Flylin
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- PREMIUM HSS QUALITY: Crafted from high-speed steel, our Extra Long Twist Drill Bits guarantee superior hardness and durability. This premium material ensures that you can tackle various drilling tasks with confidence, providing long-lasting performance for all your projects.
- SMOOTH DRILLING EXPERIENCE: Designed with a sharp twisted tip, these drill bits facilitate effortless drilling. Whether you're working with wood, plastic, or aluminum, the efficient design of our Extra Long Twist Drill Bits allows you to penetrate tough materials smoothly, reducing strain during use.
- DEEP HOLE FUNCTIONALITY: Thanks to their extra-long length, these twist drill bits excel at drilling deep holes with precision. This feature is essential for reaching difficult areas and accommodating diverse project needs, making them perfect for professionals and DIY enthusiasts alike.
- MULTI-MATERIAL USAGE: Our Extra Long Twist Drill Bits are versatile tools suitable for an extensive range of applications. From woodworking to plastic fabrication and aluminum drilling, they serve as an indispensable part of any toolkit, enabling you to complete various tasks efficiently.
- ESSENTIAL TOOLKIT ADDITION: Elevate your toolkit with our Extra Long Twist Drill Bits, designed for hobbyists and professionals. Their exceptional strength and versatility make them a must-have for anyone looking to achieve high-quality results in their drilling projects.
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#3 Budget Pick
Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)
Brand: STROTON
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- Premium M42 8% Cobalt Steel ,68-70 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life.
- 3 Steps Design for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic.
- This Cobalt Drill Bit is Typically Capable of Running Three to Five Times Faster.Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.
- The Sufficiently Sharp Bit Edge Can Cut the Metal Material into Long Strips of Iron Chips rather than Slowly Grinding Throng the Material with a Blunt Drill Bit.
- 19Pcs 135 Degree Split Point Drill Bits Includes :1mm(length:3.4cm) 1.5mm 2mm 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm(length:8.5cm) 5.5mm 6mm(length:9cm) 6.5mm 7mm 7.5mm 8mm(length:11.5cm) 8.5mm 9mm 9.5mm 10mm(length:13cm) [DIA 0.5mm Increments] .
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#4 Top Choice
Extra Long Twist Drill Bit High Speed Steel Drill Bit Sets Straight Shank Spiral Drill Bit for Wood Plastic and Aluminum 2-5mm
Brand: YDuupxe
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- [5-piece Set] Includes 5 drill bits in various sizes, suitable for most drilling jobs and materials like aluminum and wood.
- [ Twisted Design] Makes drilling easier and more efficient, enhancing overall drilling experience.
- [High-speed Steel Material] Twist drill bits made from high-speed steel for durability and hardness.
- [Extra Long Cutting Allows for drilling deep holes effortlessly.
- [Versatile Usage] Ideal for a wide range of materials including wood, plastics, and aluminum.
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#5 Popular Choice
High Speed Steel Extra Long Twist Drill Bit Set, Bits for Wood, Aluminum, Plastics, 5 Drill Bits 2mm-5mm, Most Popular Sizes, Deep Holes, with 150mm~160mm Length
Brand: Tomvorks
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- [Extra Long Cutting ] With a length of 150mm~160mm, these drill bits allow for deep hole drilling in various materials.
- [Effortless Drilling] The twisted design of these drill bits ensures that drilling is easier and more efficient, providing a smooth drilling experience.
- [Made from High-speed Steel] The twist drill bits offer exceptional hardness and durability for long-lasting use.
- [Versatile Use] Suitable for drilling tasks on aluminum, wood, plastics, and other materials, making them ideal for a wide range of applications.
- [5-piece Set] This drill bit set includes sizes ranging from 2mm to 5mm, covering the most popular drill bit sizes.
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#6 Top Pick
Hymnorq 3/8 Inch Fractional Size M35 Cobalt Steel Twist Drill Bit Set of 5pcs, Jobber Length and Straight Shank, Extremely Heat Resistant, Perfect Drilling in Stainless Steel and Cast Iron
Brand: Hymnorq
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- High-Performance M35 Cobalt Steel: Each 3/8" drill bit is made from M35 grade steel with 5% cobalt, offering exceptional heat resistance and durability for drilling through hardened materials like stainless steel, cast iron, and alloy steels.
- Precision Dual Twist Flute Design: The dual twist flute construction ensures efficient chip removal and smooth cutting action, reducing friction and heat buildup during use—ideal for clean, fast drilling in metal and other tough materials.
- Accurate 135° Split Point Tip: Designed with a 135° split point tip, these bits start quickly and stay on target without wandering, delivering precise and clean holes even on curved or hard surfaces.
- Straight Shank with Chamfered End: The straight shank offers a stable and secure fit in standard drill chucks, while the chamfered end makes bit changes quicker and easier for a seamless drilling experience.
- Durable Transparent Storage Case: Comes in a tough, clear PP plastic case that keeps all 5 drill bits protected, organized, and easy to access—perfect for both professional toolboxes and DIY home workshops.
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#7 Top Pick
NEIKO 10047A Extra Long Drill Bit Set | 5-Piece | M2 HSS Steel | 12-Inch Length | 1/8, 3/16, 1/4, 5/16, and 3/8-Inch
Brand: Neiko
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- [LONG REACH]: Extra-long drill bits give you 12 inches of added length to work with and provides more stability during quick operations.
- [DURABLE]: These drill bits are made from heat-treated M2 high speed steel for excellent hardness, wear resistance, and toughness.
- [SMOOTH DRILLING]: Combining high hardness and sharp pointed tips, these drill bits easily puncture tough materials for a smooth drilling finish.
- [VERSATILE]: Long drill bits can be used for drilling into metal, wood, plastic, PVC, and many other materials.
- [INCLUDES]: This extra-long drill bit set has (5) standard sizes of 12-inch drill bits that includes: 1/8-inch, 3/16-inch, 1/4-inch, 5/16-inch, and 3/8-inch.
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#8 Top Pick
Drill America KFDML Series Killer Force High-Speed Steel Mechanics Length Drill Bit Black/Gold Oxide Finish Round with 3-Flat Shank Spiral Flute 135 Degrees Split Point 13/64 Size (Pack of 12)
Brand: Drill America
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#9 Top Pick
Hymnorq 1/4 Inch Fractional Size M35 Cobalt Steel Twist Drill Bit Set of 10pcs - Jobber Length and Straight Shank - Extremely Heat Resistant - Perfect for Drilling in Stainless Steel and Iron
Brand: Hymnorq
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- Industrial-Grade M35 Cobalt Steel: Made with 5% cobalt-enriched M35 steel, these 1/4" drill bits deliver superior strength, heat resistance, and wear durability—ideal for drilling stainless steel, cast iron, and other tough metals.
- Dual Twist Flute & Fully Ground Design: Features a fully ground, dual twist flute for smoother drilling, faster chip removal, and greater precision—reducing friction and extending tool life during heavy-duty use.
- 135° Split Point for Precision Starts: The 135° split point tip ensures accurate starts with minimal walking, making it easier to drill clean, precise holes on hard or curved surfaces..
- Straight Shank with Chamfered End: Designed with a straight shank for a secure fit in standard drill chucks and a chamfered end for smooth bit changes and better grip stability during operation.
- Durable Transparent PP Case: Comes in a tough, transparent plastic case that keeps all 10 drill bits organized, protected, and easily visible—perfect for professionals and DIYers who value efficiency and tool care.
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#10 Top Pick
YIXANNX Precision Skewed Head Eccentric Drill Bits High Hardness Premium Four Flute Best for Home Drilling Projects Four Flute Sawtooth Eccentric Drill Bits Versatile
Brand: YIXANNX
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- [Premium Material]:The four flute sawtooth eccentric drill bits are made of quality alloy material with wear resistance and high hardness,which improves work efficiency
- [Multifunctional Drill]:The skewed head eccentric drill bits Provide accurate drill on tiles,glass,brick walls,wood,concrete,metal,ceramic,etc
- [Hexagonal Shank]:The four edged serrated eccentric drill bits adopt hexagon shank design ensuring good stability,and will not easily slippage or deviation,resulting in smooth pipe mouths
- [Unique Design]:The sawtooth eccentric drill bits adopt threaded discharge groove design,expand discharge space,eccentric positioning tip design,accurate positioning,fast drilling
- [Product Size]:The home drill bits size is 6mm 8mm
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