Best Bosch Mechanics Length Drill Bits in 2026

1/2" Diameter X 12" Long Auger Drill Bit with a 3/8" Hex Shank

Made of Carbon Steel. Solid Center Design for extra rigidity while boring.

Perfect for drilling into soft and hardwood, MDF, Plywood, Lumber, Railroad Ties, Landscape Timber, Invisible Floating Shelf Bracket Installation, tree stump boring, for up to 10” deep hole. Easy to bore into tree stump, lumber, landscape timber and railroad ties.

JOBBER LENGTH: 3/32-inch cutting diameter, 1-1/4-inch flute length, 2-1/4-inch overall length, 118 degree point, straight shank

MADE FROM HIGH-SPEED STEEL AND 5% COBALT: improve much higher heat resistance because of cobalt steel's high red hardness, provide strong durable performance compared to typical hss drill bits

CAN BE REPEATEDLY SHARPENED AS NEEDED: cobalt drill bit's hardness is uniform throughout the entire material, so that can be repeatedly sharpened without damaging the cutting edge allowing it to drill more than hss drill bits

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.

【M35 COBALT HIGH SPEED STEEL】1/4" 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

Package & Size - 6 Pieces drill bits in a double blister pack with easy opening design. Diameter 3/32 inch, total length 2-1/4 inch, working length 1-1/4 inch, 135° split point, straight shank drill bit.

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.

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.

JOBBER LENGTH: 3/16-inch cutting diameter, 2-5/16-inch flute length, 3-1/2-inch overall length, 135 degree split point, 3-flat shank

MADE FROM PREMIUM M2 HIGH-SPEED STEEL: perform better because of its well-balanced toughness

TITANIUM NITRIDE COATING: add lubricity and hardness, enhancing chip flow, finish hole quality and drill life

HIGH QUALITY MATERIAL: 5% Cobalt High Speed Steel M35 provide extended tool life compared to ordinary drill bits.Durable, Higher Heat & Abrasion Resistance.

PRECISE 135°SPLIT POINT & TWIST DESIGN: Prevent walking, clear chips and particles faster.

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.

Diameter: 2mm(0.08in) 2.5mm(0.09in) 3mm(0.12in) 4mm(0.16in) 4.5mm(0.18in) 5mm(0.2in) 6mm(0.24in) 7mm(0.28in).Length:about 200mm(about 7.8 inch)

Application:drill bits kit are great for most drilling jobs and materials such as aluminum, wood, plastics PVC and other different materials or your daily drill use.

Quantity:This set includes 8 pieces drill bit in different sizes of the most popular drill bits.1 pc/per size.

Made from cobalt(5%) High Speed Steel , increases the wear and heat resistance of drill bit, the life span of drill bit is prolonged.

Fully Grinding Processing makes the surface of drill bit smoother, the friction can be reduced and the cutting speed is faster.

135° Split Point Design improves cutting speed while easy self-centering, prevent walking and skating across the workpiece surface

GIFD - Our mission is simple: To help enthusiasts, homeowners, hobbyists, tradesmen, Shadetree Mechanics, and perfectionists get the job f*#king done. *NOTE- these are the 10 pcs variable length point drill bits for wood. Not the extra long 12".

SUITABLE FOR VARIOUS APPLICATIONS: Brad point drill bits that fit bench drill, and conventional hand drill. High hardness, superior drilling power and durability. Perfect for hardwood, particleboard, fiberboard, plastic, plywood, PVC, rubber etc.

THERE IS NO ONE IN OUR LEVEL: We have created the best drill bit set anywhere. Insanely sharp steel, a FULL 10pc set, including sizes 1/8", 9/64", 5/32", 11/64", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2" and a storage case - to keep 'em all organised.

★【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.

★【Pack of 2 / Premium Bright Finish】 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.

Packaging: 10 pcs Cobalt Drill Bit Set , Diameter 3/16"(Dia 4.76mm) , Flute Length 2-5/16"（58.74mm） , in a sturdy plastic case for easy storage and carrying.

3/16" M35 Material Cobalt drill bits: 3/16" drill bits for metal is made of Industry grade M35 High Speed Steel, containing 5% cobalt, which increases drill bit wear-resistance, durability and heat resistance.

135 Degree Tip Twist Design: precise positioning, lower pressure, fast penetration. Equipped with a straight shank to prevent walking, making drilling more precise and fast,clears particles quickly, decreases friction and heat.

Package includes: you will get 2 pieces 1/4 spade drill bit extension hex shanks and 2 pieces hex keys, which are helpful for wood spade bit extension; 2 Sizes for length, namely 6 inches and 12 inches, provide nice operability; Suitable for hard-to-reach bolts and screws, allowing you to complete your work better and faster

Fits for most 1/4 inches bits: wood bit extension sets are suitable for most 1/4 inches drill bit extension hex shank insert and power bits, which can be applied for all of your needs screws, nuts, drills, handheld drivers, tool box and construction; With that extra-long extension, you’ll be able to reach almost everywhere; Please confirm the size before buying

Reliable material: the spade drill bit extension is made of high-carbon steel, safe and durable to use; It not only can hold bits securely in place to make sure that your bits keep in place and never wobble while in use, but also give you maximum control and accuracy when drilling and driving; Besides, the durable high-carbon steel construction makes it to has nice rust resistance, and suitable for use with wood spade bits

Set of 13 jobber length drill bits includes inch sizes 1/16" through 1/4" in 1/64" increments

High-speed steel (HSS) provides hardness for wear resistance

Black oxide finish reduces bit wear while promoting chip and coolant flow on ferrous material

Practical Combination: the package comes with 3 sets of spade drill bit sets, each set including 2 pieces of extensions and 2 pieces of wrench keys, practical combination and abundant quantity to meet your daily use and replacement needs

2 Sizes in Length: the drill bit extensions have 2 different sizes, respectively are 6 inches and 12 inches, bringing more conveniences to your work and offering more choices for you, and they are suitable for most 1/4 inches drill bit extension hex shank insert and power bits; Please check the size before purchasing

Sturdy and Long Lasting: these drill bit extenders and wrenches are made of high carbon steel material, which is sturdy and reliable to use, featuring good durability and hard to deform, not easy to bend and break off, rust and erode resistant, suitable for use with wood spade bits

Set of 29 short length drill bits includes inch sizes 1/16" through 1/2" in 1/64" increments

High-speed steel (HSS) provides hardness for wear resistance

Uncoated (bright) finish is an untreated surface that can be used on a range of materials, especially soft metals

Free Shipping Everyday on all OEM Tools Direct Orders

Made from M35 Cobalt High Speed Steel - 2 3/4" OAL

135 degree Split Point Tip : HRC 63-66

Set of 15 short length drill bits includes inch sizes 1/16" through 1/2" in 1/32" increments

High-speed steel (HSS) provides hardness for wear resistance

Black oxide finish reduces wear while promoting chip and coolant flow on ferrous materials

TITANIUM | HIGH-SPEED STEEL: Twist Drill Bits, Jobber Length,Classic HSS Construction With Titanium Coating For Proven Capability And Durability.

STRENGTH & DURABILITY: Made With HSS 4341, Rockwell Hardness Level HRC 60-62.

20PCS:Diameter 3/16 inch, Total Length 3-1/2 inch, Working Length 2-5/16 inch.

Set of 21 jobber length drill bits includes inch sizes 1/16" through 3/8" in 1/64" increments

High-speed steel (HSS) provides hardness for wear resistance

Black oxide finish reduces bit wear while promoting chip and coolant flow on ferrous material

1875 13 Piece set 1/16-1/4 x 64

Set range: 1/16-inch - 1/4-inch

Cle-Line is a familiar name to users of quality cutting tools

STUBBY MECHANICS LENGTH: 135 degree split point reduces drill walking, straight shank

MADE FROM HIGH-SPEED STEEL AND 5% COBALT: improve much higher heat resistance because of cobalt steel's high red hardness, provide strong durable performance compared to typical hss drill bits

CAN BE REPEATEDLY SHARPENED AS NEEDED: cobalt drill bit's hardness is uniform throughout the entire material, so that can be repeatedly sharpened without damaging the cutting edge allowing it to drill more than hss drill bits

DIMENSION: 7/64-inch cutting diameter, 1-inch flute length, 2-3/16-inch overall length, 118 degree point, straight shank

MADE FROM HIGH-SPEED STEEL AND 5% COBALT: improve much higher heat resistance because of cobalt steel's high red hardness, provide strong durable performance compared to typical hss drill bits

CAN BE REPEATEDLY SHARPENED AS NEEDED: cobalt drill bit's hardness is uniform throughout the entire material, so that can be repeatedly sharpened without damaging the cutting edge allowing it to drill more than hss drill bits

Assortment of 29 mechanics length drill bits includes inch sizes 1/16" to 1/2" in 1/64" increments

Manufactured from M2 premium grade high speed steel.

35 degree split point tip for self-centering and reducing thrust

1875 29 Piece set 1/16-1/2 x 64

Set range: 1/16-inch - 1/2-inch

Cle-Line is a familiar name to users of quality cutting tools

Use for 5-Inch OAL 1/2-inch drill bits

Clip-on cup drill index; high impact, break resistant plastic

Water resistant, Great for outdoor jobsites

29P 1875 1/16-1/2X64 black and gold mechanics bit barrel

Set range: 1/16-inch - 1/2-inch

Cle-Line is a familiar name to users of quality cutting tools