ReviewsDrill Bits For Hardened Steel

Topline Cutting Tools No. 7 Drill Bits Cobalt M42 4-Pk

Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum.
Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits.
High-heat resistant bits – withstand high-temperature applications for extended periods of time.
Thick web-helix design – provides additional stability in tough applications.Case Type:Plastic.
Surface-hardened tip – penetrates tough abrasive materials.

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Woodworking Auger Drill Bit Sets, 8Pcs High Carbon Steel Wood Boring Bits Long 4 Flute Cut Drilling Tool Wood Hole Cutter for Wood Door Lock 9/23, 9/19, 5/9, 7/11, 5/7, 11/14, 13/15, 63/64-IN

Material: Auger drill bit made of High Carbon Steel, hardened and tempered for longer useful life. And lighter weight carbon steel construction than standard augers for safety.
Excellent craftsmanship: Designed for 4precision ground cutting edges and 4 flutes engineered to optimize performance, easy for chip removing. With self feeding auger point, easy cutting of accurate diameter holes. Attention: Please make sure these auger drill bits worked on wood, and fixed the drill bits firmly when the electric drill start working to avoid broke the drill bits. Due to these auger drill bits come with a long handle, you need press the electric drill hardly to avoid wobbling.
8 different size: 9/23"(10mm), 9/19"(12mm), 5/9"(14mm), 7/11"(16mm), 5/7"(18mm), 11/14"(20mm), 13/15"(22mm), 63/64"(25mm), different size for your needs..
Available application: Woodworking drill bits ideal for making neat and clean holes into both hard wood and soft wood, plastic, etc. Come with grooved hex shank, can be used in hand drills electric drills..
Service warranty: We promised provide good quality products and service. If there is any problem, please just contact us freely, and we can provide you a new replacement or refund..

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BOSCH CO2159B 1/2 In. x 6 In. Cobalt M42 Drill Bit

Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum.
Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits.
High-heat resistant bits – withstand high-temperature applications for extended periods of time.
Thick web-helix design – provides additional stability in tough applications.
Surface-hardened tip – penetrates tough abrasive materials.

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KINGFOREST Pin Vise Hand Drill for Resin Casting Molds, Steel Hand Drill with 20 PCS Drill Bits (0.8-3 mm), for Wood, Manual Work DIY, Jewelry, Assembling, Model Making（Silver）

HIGH QUALITY:This hand drill is made of premium stainless steel, rust proof, sturdy and durable. Silver surface and non-slip design, looks pretty exquisite and good for rotating easily.And the twist drill bits are made of high speed steel,the drill pin vise has 3-jaw hardened steel keyless chuck,easy to operate..
GREAT FOR DIY: Compact size, light, useful for working on resin, wood, plastic, polymer clay, bead, pearl, amber, beeswax and other not too hard materials, give assistance to make diy projects, like necklace, earing, jewelry, bracelet, pendant, keychain, model, sculpture, doll and more..
CONVENIENT TO USE : Easy to install and loosen the drill bits by rotating the head, then tighten the vise head while clamping the bit. You can start drilling your project, then insert the screw eye pin and fix it, add the jump ring to attach the stuff and keychain together..

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KINGFOREST Pin Vise Hand Drill for Resin Casting Molds, Steel Hand Drill with 20 PCS Drill Bits (0.8-3 mm), for Wood, Manual Work DIY, Jewelry, Assembling, Model Making（Black）

...ing them upright and clamping them really tight..
HIGH QUALITY:This hand drill is made of premium stainless steel, rust proof, sturdy and durable. Silver surface and non-slip design, looks pretty exquisite and good for rotating easily.And the twist drill bits are made of high speed steel,the drill pin vise has 3-jaw hardened steel keyless chuck,easy to operate..
GREAT FOR DIY: Compact size, light, useful for working on resin, wood, plastic, polymer clay, bead, pearl, amber, beeswax and other not too hard materials, give assistance to make diy projects, like necklace, earing, jewelry, bracelet, pendant, keychain, model, sculpture, doll and more..
CONVENIENT TO USE : Easy to install and loosen the drill bits by rotating the head, then tighten the vise head while clamping the bit. You can start drilling your project, then insert the screw eye pin and fix it, add the jump ring to attach the stuff and keychain together..

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JEFE HEX 115 pcs HSS Cobalt Drill Bit Set, Twist Jobber Drill Bits Set, 135-Degree Split Point, Fractional 1/16'-1/2', Letter A - Z, Wire #1 - #60 for Stainless Steel, Hardened Metal, Cast Iron, Wood and Plastic with Metal Indexed Storage Case

13 PACK OF 1/4" COBALT DRILL BITS - 1/4" Diameter with a Flute Length of 2-3/4" and Total length of 4".
M35, FULLY GROUND, 135° SPLIT POINT - Our Drill Bits Contain 5% Cobalt, Are Fully Grounded for a Precision Drilling Diameter. 135° Split Point Design Makes it Easier to Drill Repeated Holes in Harder Materials..
PLASTIC STORAGE CASE INCLUDED - Incredibly Tough and Durable Plastic Case. Perfect for Keeping Your Cobalt Drill Bits Neatly Organized and Safe..
COBALT DRILL BITS ARE THE PERFECT DRILL BITS FOR METAL - As well as other hard materials such as Stainless Steel, Hardened Steel, Cast Iron, Bronze, Titanium, and More!.
LIFETIME GUARANTEE - Here at Owl Tools (USA Based Company) we only care about your satisfaction. We try our best to ensure each product is in perfect condition before you get it, but if something is not up to your satisfaction, please contact us for a full refund or replacement..

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Hymnorq 7/16 Inch Dia. x 5.51 Inch Long M35 Cobalt Steel Twist Jobber Length Drill Bits 2PC Set, 135 Degree Split Point, Extremely Heat Resistant, for Stainless Steel and Cast Iron

COBALT STEEL - Manufactured from M35 cobalt steel, with molybdenum and cobalt added to create a hardened heat-resistant alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times compared with an average HSS drill bit..
SELF CENTERING - The 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. The bits will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks..
2PC 7/16 INCH FRACTIONAL BITS - The set includes 2pcs of M35 cobalt steel twist drill bits. Total length: 5.51".
working length: 4.06". Manufactured to German DIN338 standard. Packed in a plastic bag and a flat paper box..
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 / high carbon steel. Try to adjust the RPM when it fails to penetrate..
DOWNLOADABLE USER GUIDE - We've summed up some tips of drilling metals, including a RPM chart for several common metals, based on our reviews and some articles on the ....

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amoolo Countersink Drill Bits Set 7Pcs, Counter Sink Drill Bit for Wood, Woodworking High Carbon Steel Carpentry Bit with Chamfering Combination Pedestal, 1 Free Hex Key Wrench Attached

【EFFICIENT DESIGN】3-point tricuspid ensures drill process accurate and fast, no offset, slip and bias during drilling.
2-spiral flute makes chip removing easy and efficient.
5-edged chatter-free chamfer cutter pedestal design makes countersink precise and smooth. All cutting edge are well hardened and honed for sharpness..
【MULTIPLE APPLICATION】 Perfect for Wooden planks, Fiberboard, Particle board, Plywood, Plastic, PVC and soft metals. Suitable for hand drill, bench drill and electric drill. The drilling depth of countersink drill bits are adjustable by screws with various lengths.
Meanwhile, their bits are removable for easy cleaning, sharpening,and replacement. × NOT for hard metals or steel board.
【SOPHISTICATED DESIGN】Extra straightening drill bit with exquisite countersink pedestal provide user a method of drilling a countersink hole with 1 time drill process.Extra straightening drill bit makes the drill hole accurate and smooth, exquisite countersink pedestal creates proper countersink structure with efficient experience..

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JEFE HEX 115 PCS HSS Cobalt Drill Bit Set, Twist Jobber Drill Bits Set, 135-Degree Split Point, Fractional 1/16"-1/2", Letter A - Z, Wire #1 - #60 with Metal Indexed Storage Case

60 pcs wire sizes from #1 to #60. Almost cover all sizes you would use..
COBALT JOBBER DRILL BITS:115 pcs high speed steel with 5% cobalt drill bit set can resist high heat abrasion while drilling. M35 cobalt HSS twist drill bits is more suitable for hardened working material. Particularly adapt to drilling stainless steel, cast iron, high temperature alloy, titanium alloy and even hard plastics, and woods. Can also be used for soft materials..
TWIST DRILL BITS: Premium HSS with 5% Cobalt and 135° split point drill tip design guarantee 115 pcs drill bit keeping sharpness while drilling hard materials and prevent tips walking on the working surface. Proper twist and flute design clears chips and particles fast..
WIDE APPLICATION: Jefe Hex 115 pcs set with sharp and hard cutting edge is ideal for versatile application especially for projects made from hard material, such as kitchen utensils, machine parts, medical equipment, DIY projects and so on..
ORGANIZED HOLDER: The whole drill bit set is kept in one iron case with size index holder for easy storage and o....

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Hymnorq Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight Shank Set of 50pcs in 5 Sizes(1, 1.5, 2, 2.5, 3mm) for Stainless Steel Cast Iron and Hard Metals

M35 COBALT STEEL – Manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit..
Point Angle – The 3mm bits are 135° split pointed, which is self-centering and will penetrate quickly with less pressure. Will not “walk” or “wander”. The other small ones are 118°..
FOR STAINLESS STEEL – Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate..
50PC SET – The set includes 50pcs of metric M35 cobalt steel twist drill bits: 1mm, 1.5mm, 2mm, 2.5mm, 3mm. 10 each metric drills in popular hobbyist sizes at low price. Manufactured to German DIN338 standard..
Packed in a plastic bag. These bits are quite small. Please refer to the picture including a size chart..

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30 Piece Hex Head Allen Wrench Drill Bit Set, 1/4 Inch Hex Shank Metric and SAE S2 Steel Hex Bit Set, Magnetic Tips 50mm Long (SAE+METRIC HEX BITS)

...RUST 】 30 pieces of bits are magnetic tips so they can hold screws easily.Complete rust and corrosion resistance with fully polished, Chrome plated mirror finish bits treatment..
▲ 【LONGEVITY & 100% RISK-FREE】 Heat-treated S2 alloy steel bits, Reduce wear-outs. Hardened treated Chrome Vanadium steel sockets, Increase turning power..
▲ 【Metric and SAE S2 Steel Hex Bits Set】 [METRIC]：15 Pack Metric hex bits, Sizes - 1.5mm, 2.0mm, 2.5mm, 2.5mm, 3.0mm, 3.0mm, 3.5mm, 3.5mm, 4.0mm, 4.0mm, 5.0mm, 5.0mm, 6.0mm, 7.0mm, 8.0mm. [SAE]：15 Pack SAE hex bits, Sizes - 1/16", 5/64", 3/32", 3/32", 7/64", 1/8", 9/64", 5/32", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4"..
▲ 【WIDE RANGE OF USES】 50mm Long,Hex Head Allen Wrench Drill Bit Set can be used with electric screwdrivers, hand screwdrivers, electric drills, combination general purpose tools and any standard drill.Used in automobiles, repairs, trucks, engines, motorcycles, computers, cable boxes, toys, interiors, dashboards, appliances and consumer electronics..

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