The best drill bits for hardened steel

COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Indexed Storage Case, 1/16"-3/8"

Buy the best drill bits for hardened steel
Check Price on Amazon
Buy the best drill bits for hardened steel from Amazon.com

Description:

Specifications: Material: M35 5 Cobalt HSS Angle Point: 135 Degree split point Flute Type: 2 Spiral flute Shank Type: Round Straight Shank Standard: Jobber length Cutting Direction: Right hand SIZE1/16" 2pc,5/64" 1pc ,3/32" 2pc,7/64" 1pc,1/8" 2pc ,9/64" 1pc, 5/32" 1pc, 3/16" 1pc, 7/32" 1pc, 1/4" 1pc, 5/16" 1pc, 3/8" 1pc. COMOWARE drill bit set is made from Cobalt High Speed Steel for proven capability and durability. The cobalt jobber drill bits manufactured from M35 High Speed Steel containing 5 cobalt which is ideal for drilling in tough metal. Jobber length twist drill bits, the most common length of twist drill bit, offer a good compromise of length and reach to work with the widest range of materials and applications. The round shank accommodates most drill chucks.The cobalt twist drill bits come in a durable plastic case designed to keep all components organised and allow for easy transportation.

Buy the best drill bits for hardened steel from Amazon.com
  • 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 135SPLIT 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.
  • SIZE INCLUDED: 15pcs jobber length drill bit set with plastic storage case including sizes:1/16" 2pc,5/64" 1pc ,3/32" 2pc,7/64" 1pc,1/8" 2pc ,9/64" 1pc, 5/32" 1pc, 3/16" 1pc, 7/32" 1pc, 1/4" 1pc, 5/16" 1pc, 3/8" 1pc.
  • 100 SATISFACTION GUARANTEE: If you are not 100 satisfied with your purchase for any reason whatsoever simply please feel free to contact us.







Buy the best drill bits for hardened steel from Amazon.com


Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight Shank Set of 13pcs to Cut Through Hard Metals Such as Stainless Steel and Cast Iron

Buy the best drill bits for hardened steel
Check Price on Amazon
Buy the best drill bits for hardened steel from Amazon.com

Description:

M35 Grade Cobalt Steel

Cobalt drill bits are not made of pure cobalt, but rather a steel alloy with certain percent cobalt. The 5-percent alloy is known as M35 grade. The cobalt increases the strength of the steel and makes it more heat-resistant.

135 Degree Split Point

The flater the drill, the smaller the chip width. This means less force required to remove metal, compared with lower angles like 90 and 118. This is important on hard stuff, because your power requirements are already more than mild steel, so making the chip load less helps. It also reduces heat since less surface area is generating the cut.

Lowest Cost Per Hole Drilled

Cobalt drill bits are more expensive than other drill bits, but if you regularly drill through metal, they are a good investment since they tend to last longer. With an extended tool life, Migiwata cobalt drill bits will give you the lowest cost per hole drilled.

For Drilling Stainless Steel

This set of Migiwata M35 cobalt steel drill bits are particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too.

Tests shows that the M35 cobalt steel drill bits can penetrate a 5mm-thick 304 stainless steel plate in 5 seconds.

Not Suitable for Hardened Steel

M35 grade cobalt drill bits are NOT suitable for hardened steel, high carbon steel and heat-treated steel by the experiences of some customers, although some others said they worked well with hardened steel.

Cooling Liquid Required

Please use with cooling liquid to prolong the working life of the drill bits and to avoid overheating and breakage.

BUY WITH CONFIDENCE:

If you're not completely satisfied with the product quality, please contact us. Refund or free replacement.

Buy the best drill bits for hardened steel from Amazon.com
  • COBALT STEEL - Manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, extremely heat resistant; for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
  • NO CENTER PUNCH NEEDED - The 135 Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks. Must be used and operated at proper RPMs for maximum efficiency
  • 13PC METRIC BITS - The set includes 13pcs of M35 cobalt steel twist drill bits: 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm
  • FOR METALWORKING - Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too.
  • SATISFACTION GUARANTEED - Here at Migiwata, we do 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.






Buy the best drill bits for hardened steel from Amazon.com


Migiwata 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) to Cut Through Stainless Steel Cast Iron and Hard Metals

Buy the best drill bits for hardened steel
Check Price on Amazon
Buy the best drill bits for hardened steel from Amazon.com

Description:

M35 Grade Cobalt Steel

Cobalt drill bits are not made of pure cobalt, but rather a steel alloy with certain percent cobalt. The 5-percent alloy is known as M35 grade. The cobalt increases the strength of the steel and makes it more heat-resistant.

For Drilling Stainless Steel

This set of Migiwata M35 cobalt steel drill bits are particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too.

135 Degree Split Point

The flater the drill, the smaller the chip width. This means less force required to remove metal, compared with lower angles like 90 and 118. This is important on hard stuff, because your power requirements are already more than mild steel, so making the chip load less helps. It also reduces heat since less surface area is generating the cut.

Lowest Cost Per Hole Drilled

Cobalt drill bits are more expensive than other drill bits, but if you regularly drill through metal, they are a good investment since they tend to last longer. With an extended tool life, Migiwata cobalt drill bits will give you the lowest cost per hole drilled.

Not Suggested for Hardened Steel, High Carbon Steel and Steels Blended with Impurities

M35 grade cobalt drill bits are NOT suitable for hardened steel, high carbon steel and heat-treated steel by the experiences of some customers.

Cooling Liquid Required

Please use with cooling liquid to prolong the working life of the drill bits and to avoid overheating and breakage.

About Breakage

Please be careful when you drill holes with shese needle-like small bits. They're more likely to break than larger ones.

BUY WITH CONFIDENCE:

If you're not completely satisfied with the product quality, please contact us. Refund or free replacement.

Buy the best drill bits for hardened steel from Amazon.com
  • 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.
  • No Center Punch Needed - the 135 quick-cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander"
  • 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.
  • 50pcs Set - The set includes 50pcs of metric M35 cobalt steel twist drill bits: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 10pcs of each size. These bits are quite small. Please refer to a second product picture.
  • Satisfaction Guaranteed - Here at Migiwata 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.






Buy the best drill bits for hardened steel from Amazon.com


Irwin Industrial Tools 63221 Cobalt Fractional Straight Shank Jobber Length Metal Index Drill Bit Set, 21-Piece

Buy the best drill bits for hardened steel
Check Price on Amazon
Buy the best drill bits for hardened steel from Amazon.com

Description:

This IRWIN Cobalt High-Speed Steel Drill Bit Set includes drill bits made of M-42 5 cobalt high-speed steel for super abrasive resistance in tough metals. The 135 split point reduces feed pressure for easy penetration without work hardening, while the heavy-duty spiral flute design produces faster chip ejection. These versatile drill bits come in a metal index case for easy transport and organization.

Buy the best drill bits for hardened steel from Amazon.com
  • Drill bits are made of M-42 5 cobalt high-speed steel for super abrasive resistance in tough metals
  • 135 split point reduces feed pressure for easy penetration without work hardening
  • Each drill bit has a heavy-duty spiral flute design that produces faster chip ejection
  • Shorter cutting lips reduce torque for drilling in high-tensile-strength materials
  • Cobalt drill bit set comes in a metal index case
  • Constructed of M-42 5 percent cobalt high speed steel for super abrasive resistance in tough metals
  • Heavy duty spiral flute design produces faster chip ejection
  • Shorter cutting lips reduce torque for drilling in high tensile strength materials
  • 135-Degree split point reduces feed pressure for easier penetration without work hardening
Buy the best drill bits for hardened steel from Amazon.com


DEWALT Cobalt Drill Bit Set with Pilot Point, 14-Piece (DWA1240)

Buy the best drill bits for hardened steel
Check Price on Amazon
Buy the best drill bits for hardened steel from Amazon.com

Description:

The DEWALT DWA1240 14pc Pilot Point Industrial Cobalt Drill Bit Set is designed for maximum speed and life in stainless steel and other hard metals. These bits features a pilot point and split tip design that starts on contact and eliminates bit walking along for more control. Commonly used for drilling into stainless steel, drilling into angle iron, I-Beams, and other similar metals. Set includes: (2) 1/16" bit, (1) 5/64" bit, (1) 3/32" bit, (1) 7/64" bit, (2) 1/8" bit, (1) 9/64" bit, (1) 5/32" bit, (1) 3/16" bit, (1) 7/32" bit, (1) 1/4" bit, (1) 5/16" bit, (1) 3/8" bit

Buy the best drill bits for hardened steel from Amazon.com
  • Designed for maximum speed and life
  • Pilot point and split tip design
  • No bit walking - more user control
  • Intended to be used on hard metals
Buy the best drill bits for hardened steel from Amazon.com


Impact Drill Bit Set for Hardened Metal 7 pcs German High Speed Steel Bits for Professional Duty with Metal Case

Buy the best drill bits for hardened steel
Check Price on Amazon
Buy the best drill bits for hardened steel from Amazon.com

Description:

Proffi's High speed steel drill bit set is made exclusively in Europe from best quality M2 steel, which is produced in Germany, France and Austria. Our drill bits are made from solid metal, while most of the manufacturers reduce costs by using the best quality metal only for tip of the drill bit. Furthermore each of the drill bit set quality is manually inspected to ensure maximum quality and reliability:

Perfect for metals, alloyed, constructional steels, cast iron, plastic and other materials.

Specially designed split-point for easy drilling start and great performance.

Made of M2 High Speed steel produced exclusively from three vendors: Erasteel (France); Beulmann (Germany); Boehler International (Austria).

Perfect hardness score (HRC - Rockwell scale): 62,5 - 63,5. Lower score results in lower durability; higher score results in fragility of a drill bit.

Production line is set up to meet DIN, JIS, ANSI, GOST and ISO EN 9001 standards. The drill bit set consists of seven drill bits, which are carefully selected to meet all the housework and construction needs.

Proffi's drill bits are used by top companies in aeronautics, German car manufacturers, premium class tyres manufacturer, luxury Swiss watches company and etc,

Buy the best drill bits for hardened steel from Amazon.com
  • ENHANCED DURABILITY. Up to 25 times more durable than regular HSS drill bit. Proffi's set is the best choice for professional/ industrial use and advanced specialists.
  • PERFECT PERFORMANCE. Drill bits scored 63,5 in Rockwell scale, what ensures maximum durability with lowest fragility in the class of professional drill bits. Each drill bit has 135 degree split-point which ensures precise drilling start and perfect accuracy.
  • UNIVERSAL. Perfect for drilling hardened steel, cast iron, carbon, alloys, cast iron, plastic and other materials. Drill bits sizes are carefully selected to meet the needs of the most demanding professionals in all cases.
  • MADE IN EUROPE. Made of M2 HSS (with at least 5 Tungsten) produced exclusively from three vendors: Erasteel (France); Beulmann (Germany); Boehler International (Austria). Each drill bit is manually inspected by quality experts to ensure superior quality.
Buy the best drill bits for hardened steel from Amazon.com


Hiltex 10005 HSS Silver and Deming Industrial Drill Bit Set (8 Pieces), 1/2"

Buy the best drill bits for hardened steel
Check Price on Amazon
Buy the best drill bits for hardened steel from Amazon.com

Description:

The Hiltex 10005 Silver and Deming Drill Bit Set is the perfect set for any driller. This HSS general purpose set is easy to use and tested for durability. It is designed for basic drilling applications for a perfect addition to any workshop or home garage. It features a three flat shank for a sure grip for tight tolerances with a 135 degree point refraining from slippage. This bit will get the job done with the combination of high strength, durability, corrosion resistance and portability.

Buy the best drill bits for hardened steel from Amazon.com
  • High speed stainless steel is designed to ensure sharp and fast execution in any material for clean results
  • Heat treated carbon steel with a black enamel coating is durable and can withstand heavy duty operation for a long tool life
  • Bit is precision ground with geometry of 135-degree split point for quick penetration and an accurate start
  • Tri-flat on the shanks of drills are constructed for tighter chucking maximizing security for precise holes
  • Complete set of 8 pieces come in a convenient storage case for easy storage and portability; sizes include: 1/2" Shank x 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1"




Buy the best drill bits for hardened steel from Amazon.com


Kodiak USA Made 1/8 Diameter Solid Carbide Drill - Straight Flute 3/4 Length of Cut 2 Overall Length 2 Flute

Buy the best drill bits for hardened steel
Check Price on Amazon
Buy the best drill bits for hardened steel from Amazon.com

Description:

1/8 Inch Diameter Solid Carbide Drill - Straight Flute 3/4" Length of Cut 2" Overall Length 2 Flute Straight Flute Drill Bit - Carbide.

Buy the best drill bits for hardened steel from Amazon.com
  • Made In the USA
  • 3/4 Length of Cut
  • 2 Overall Length
  • 2 Flutes



Buy the best drill bits for hardened steel from Amazon.com


21 Pc Cobalt M42 Drill Bit Set 1/16" to 1/2" by 32nds DRILL HOG USA

Buy the best drill bits for hardened steel
Check Price on Amazon
Buy the best drill bits for hardened steel from Amazon.com

Description:

Drill Hog is proud to release the newest technology in drill bits. These bits are made from Cobalt steel which has a melting point of 2723 Fahrenheit! These bits will drill through the toughest steel like truck frames, stainless steel, farm implements, spring steel, grade 8 bolts, and more! This set is known as the "Mechanics Set" because it contains the most popular sizes. Proudly made by Drill Hog USA.

Buy the best drill bits for hardened steel from Amazon.com
  • Solid Cobalt M42 Steel
  • 135 Degree Split Point Prevents "walking"
  • Tri Flat Shank - 3 Flat Sides on Shank Prevents "Spin" in the Chuck
  • 1/16 to 1/2" by 1/32nds Includes Steel Case with Pop Up Tiers
  • Lifetime Warranty
Buy the best drill bits for hardened steel from Amazon.com


Wrightus Metric M35 Cobalt Steel Twist Drill Bit Set HSS Extremely Heat Resistant with Straight Shank to Cut Through Hard Metals Like A Hot Knife Through Butter,Such as Stainless Steel,Titanium Alloy

Buy the best drill bits for hardened steel
Check Price on Amazon
Buy the best drill bits for hardened steel from Amazon.com

Description:

Different types of drill bits are used to cut holes in different types of materials.Drill through metal like a champion!

Cobalt drill bits are more expensive than other drill bits, but if you regularly drill through metal, they are a good investment since they tend to last longer.

This set of Wrightus M35 cobalt steel drill bits are particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, wood, and plastic too.
Cobalt drill bits are not made of pure cobalt, but rather a steel alloy with certain percent cobalt. The 5-percent alloy is known as M35 grade. The cobalt increases the strength of the steel and makes it more heat-resistant; this is an important factor in drilling hard materials because the friction of metal against metal can produce high temperatures that damage the material or the drill bit.

Tests shows that the M35 cobalt steel drill bits can penetrate a 5mm-thick 304 stainless steel plate in 5 seconds.
Notice: The working life of the drill bits can be largely prolonged by using with cooling liquid.

Specifications:
Material: M35 Cobalt Steel(5 Cobalt and 95 High Speed Steel)
Angle Point: 135 Degree
Flute Type: spiral
Hardness: Rockwell 67
Shank Type: straight shank

You will get:
1.5 mm Twist Drill Bit x 1pc
2 mm Twist Drill Bit x 1pc
2.5 mm Twist Drill Bit x 1pc
3 mm Twist Drill Bit x 1pc
3.2 mm Twist Drill Bit x 1pc
3.5mm Twist Drill Bit x 1pc
4 mm Twist Drill Bit x 1pc
4.5 mm Twist Drill Bit x 1pc
4.8 mm Twist Drill Bit x 1pc
5 mm Twist Drill Bit x 1pc
5.5 mm Twist Drill Bit x 1pc
6.5 mm Twist Drill Bit x 1pc
6.5 mm Twist Drill Bit x 1pc
Reusable Plastic Case x 1pc

No such words as "Cobalt Steel " is printed on the case, but they are.

Buy the best drill bits for hardened steel from Amazon.com
  • Faster Cutting and Longer Life- Our Twist Drill Bit HSS are 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 12 times when compared with an average HSS drill bit.
  • No Center Punch Is Needed-The 135 Quick-Cut points are self-centering and penetrate quickly with less pressure. Twist drill bit kit Will not "walk" or "wander"
  • Extremely Heat Resistant - twist drill bits Must be used and operated at 1500 RPM or greater for maximum efficiency. Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks
  • Metal Cutting - Drilling Steel, Stainless Steel, Hard Metal and Iron.Particularly successful in cutting through hard metals such as hard metal ,stainless steel and cast iron, although they can be used for softer materials, too
  • Easy Usage And Store -The set includes 13pcs of M35 cobalt steel twist drill bits: 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm,13Pcs Packed in a Plastic Bag For Easy Usage And Store





Buy the best drill bits for hardened steel from Amazon.com


The best drill bits for hardened steel