Reviews Cobalt Drill Bits

Sipery 10Pcs M35 Cobalt HSS Twist Drill Bits 3mm with Straight Shank, Drilling for Stainless Steel, Copper, Aluminum Alloy and Softer Materials

  • Specification - 10Pcs 3mm cobalt drill bits, each kit contains a total of ten drill bits in the same size, Blade length: 33mm/1.3inch, 135 degree point, straight shank..
  • 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..
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Sipery 10Pcs M35 Cobalt HSS Twist Drill Bits 4mm with Straight Shank, Drilling for Stainless Steel, Copper, Aluminum Alloy and Softer Materials

  • Specification – 10Pcs 4mm cobalt drill bits, each kit contains a total of ten drill bits in the same size, Blade length: 43mm/1.7inch, 118 degree point, straight shank..
  • 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..
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1/8 Inch Cobalt Drill Bits(10Pcs), HPHOPE M35 HSS Metal Twist Drill Bits Set, Jobber Drill Bits Length and Straight Shank, Suitable for Drilling in Hard Metal, Stainless Steel, Cast Iron

  • 【M35 COBALT HIGH SPEED STEEL】1/8" 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.
  • 【PROFESSIONAL & WIDELY USE】Jobber drill bits perfectly Suitable for drilling holes as Stainless Steel, Copper, Cast Iron, Galvanized Pipe, Aluminum Alloy, Wood and Other Softer Metals. Not for Glass or Ceramic Materials.
  • 【EASY USE & STORAGE】This metal twist drill bits set includes 10pcs 1/8" Cobalt Drill Bits, This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and DIY, household maintenance and repair.
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Drill Hulk 13-Piece M35 Cobalt Drill Bit Set for Hard Metal, Stainless Steel, 1/16-Inch to 1/4-Inch, Jobber Length, 3-Flat Shank

  • JOBBER LENGTH: jobber length cobalt drill bit, 135 degree split point reduces drill walking, 3-flat shank provides a secrue grip in chucks.
  • 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.
  • APPLICATION: best used for drilling in hard metal, including stainless steel.
  • INCLUDE: 13 pieces cobalt drill bits in inch sizes 1/16" to 1/4" (1/64" increments) with plastic case.
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STROTON Cobalt Drill Bit Set (1/16-1/2 Inch, 17PCS), M35 High Speed Steel Twist Drill Bits for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood

  • SET OF 13 COBALT DRILL BITS - In the following imperial sizes 1/4", 15/64", 7/32", 13/64", 3/16", 11/64", 5/32", 9/64", 1/8", 7/64", 3/32", 5/64", 1/16".
  • 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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Cobalt Drill Bit Set M35 High Speed Steel Twist Drill Bit Set for Hardened Metal Stainless Steel Cast Iron Woodwork Plastic (30 Pieces,1/8 Inch)

  • Quality material: the cobalt drill bit set uses cobalt M35 high speed steel as material, this material is reliable and practical, with a long service use, heat and abrasion resistance.
  • The cutting edge of drill bit is hardened and honed, with accurate cutting without shaking.
  • Creative twist design: metal cobalt drills for hardened steel has 135 degrees split point tip and torsional design to improve cutting speed with self-centering ability.
  • They can avoid walking during work process, while clearing chips and particles more quickly and easily.
  • Nice features: the nice twist drill bits have precise diameter.
  • M35 cobalt drill bits for hardened metal are not easy to break or wear out, so suitable for lithium electric drill, hand electric drill, impact electric drill, etc..
  • The size is small, please pay attention to use.
  • Various fitness: M35 high speed steel cobalt drill set is nicely suitable for hardened material and hard metals, such as cast iron, high temperature alloy, hard plastics, stainless steel, titanium alloy, woods, etc., also for soft materials.
  • What you will get: the package contains many cobalt drill bits, sufficient quantity to meet your various needs.
  • Please pay attention to speed, pressure and heat control during drilling.
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3/32-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12

  • 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.
  • APPLICATION: best used for drilling in hard metal, including stainless steel.
  • INCLUDE: 12 pieces of 3/32-inch cobalt drill bits with case.
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1/4-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12

  • JOBBER LENGTH: 1/4-inch cutting diameter, 2-3/4-inch flute length, 4-inch overall length, 135 degree split point, 3-flat 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.
  • APPLICATION: best used for drilling in hard metal, including stainless steel.
  • INCLUDE: 12 pieces of 1/4-inch cobalt drill bits with case.
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1/8-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12

  • JOBBER LENGTH: 1/8-inch cutting diameter, 1-5/8-inch flute length, 2-3/4-inch overall length, 135 degree split 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.
  • APPLICATION: best used for drilling in hard metal, including stainless steel.
  • INCLUDE: 12 pieces of 1/8-inch cobalt drill bits with case.
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3/16-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12

  • 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 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.
  • APPLICATION: best used for drilling in hard metal, including stainless steel.
  • INCLUDE: 12 pieces of 3/16-inch cobalt drill bits with case.
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5/16-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 6

  • JOBBER LENGTH: 5/16-inch cutting diameter, 3-3/16-inch flute length, 4-1/2-inch overall length, 135 degree split point, 3-flat 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.
  • APPLICATION: best used for drilling in hard metal, including stainless steel.
  • INCLUDE: 6 pieces of 5/16-inch cobalt drill bits with case.
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Cobalt Drill Bit Set M35 High Speed Steel Twist Drill Bit Set for Hardened Metal Stainless Steel Cast Iron Woodwork Plastic (15 Pieces,1/16 Inch)

  • Quality material: the cobalt drill bit set uses cobalt M35 high speed steel as material, this material is durable, strong and practical, with a long service life, heat and abrasion resistance.
  • The cutting edge of drill bit is hardened and honed, with accurate cutting without shaking.
  • Creative twist design: metal cobalt drills for hardened steel has 135° split point tip and torsional design to improve cutting speed with self-centering ability.
  • They can avoid walking during work process, while clearing chips and particles more quickly and easily.
  • Nice features: the 1/16 inch twist drill bits have precise diameter.
  • M35 cobalt drill bits for hardened metal are not easy to break or wear out, so suitable for lithium electric drill, hand electric drill, impact electric drill, etc..
  • The size is small, please pay attention to use.
  • Various fitness: M35 high speed steel cobalt drill set is greatly suitable for hardened material and hard metals, such as cast iron, high temperature alloy, hard plastics, stainless steel, titanium alloy, woods, etc., also for soft materials.
  • What you will get: the package contains 15 pieces 1/16 inch cobalt drill bits, sufficient quantity to meet your various needs.
  • Please pay attention to speed, pressure and heat control during drill....
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Drill Hulk 7-Piece M35 Cobalt Left Hand Drill Bit Set for Removing Damaged Bolts and Screws, 5/64-Inch, 7/64-Inch, 5/32-Inch, 1/4-Inch, 19/64-Inch

  • 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.
  • APPLICATION: best used for removing damaged bolts and screws, or drilling a pilot hole for a screw extractor.
  • INCLUDE: 2pcs 5/64 inch, 2pcs 7/64 inch, 1pc 5/32 inch, 1pc 1/4 inch and 1pc 19/64 inch cobalt left hand drill bits with case.
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