Reviews Cobalt Extension Drill Bit

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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amoolo 1/4\ Cobalt Drill Bit(10 Pcs), M35 HSS Metal Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron

  • 【10Pcs 1/4" Cobalt Drill Bits】10Pcs - 1/4”(Dia 6.35mm) x 2-3/4”(Flute Length 69.85mm) Metal 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 organization..
  • 【M35 Cobalt High Speed Steel】Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. These drill bits also contain 5% Cobalt, which increases wear-resistance and durability..
  • 【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed..
  • 【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling..
  • 【90 Days Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement..
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Flexible Drill Bit Extension and Universal Socket Wrench Tool Set, 105° Right Angle Drill Attachment, 1/4 3/8 1/2\ Universal Socket Adapter Set, Screwdriver Bit Kit

  • 【Complete Collocation】Package included 1Pcs bendable drill bit extension, 3Pcs 1/4 3/8 1/2" universal socket adapter set, 1Pcs universal socket wrench, 1Pcs 105° right angle drill extension, 10Pcs screwdriver bit set..
  • 【105° Right Angle Drill Extension】It come with a 105° right angle drill extension bit can be connected to the drill, rechargeable drill or manual wrench, extending their reach to inaccessible stenosis , twisting screws, nut and more..
  • 【Universal Socket Wrench】Unique design of this universal socket can automatically adjust to any size or shape, suitable for standard 1/4 to 3/4 inches and metric 7mm to 19mm screws, nuts, and blots, meeting all your needs..
  • 【Multifunction Socket Adapter】1/4 3/8 1/2" square nut hex shank driver drill bit used in the installation of pneumatic screwdriver, electric screwdriver, pneumatic drill, manual screwdriver and other installation for the hexagonal tool. It is a good accessory for conversion..
  • 【Bendable Flexible Drill Extension】11.7" bendable drill bit extension can twisted and rotated at many different angles. It can be drilled into a small space, in a variety of gaps, rather than your hand, flexible installation work. Let our flexible drill bit extension tool help you solve more pro....
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Flexible Drill Bit Extension Set 17pcs,Includes 3pcs Universal Socket Adapter Set & Drill Bit Holder Extension,10pcs Screwdriver Bit Set

  • 【DIY Work Tool Set】Package included 1 Pcs bendable drill bit extension, 3pcs Universal Socket Adapter Set,3pcs Drill Bit Holder Extension, 10Pcs screwdriver bit set. This tool sets is light and compact, drawstring pocket convenient to carry outside and store. adequate to use in daily life..
  • 【Bendable Flexible Drill Extension】The ​Bendable drill bit extensioncan twisted and rotated at many different angles. It can be drilled into a small space, in a variety of gaps, rather than your hand, flexible installation work. Let our flexible drill bit extension tool help you solve more problems quickly..
  • 【Angle Drill Attachment】It is equipped with a angle drill bit extension bit, which can be connected to an electric drill, rechargeable drill or manual wrench to expand its range to inaccessible narrow places, tighten screws, nuts and more to help you get the job done quickly..
  • 【Multifunction Socket Adapter】3pcs 1/4" , 3/8.
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BECOLLO 1/4 Inch Cobalt Drill Bit Set, M35 Jobber Length Twist Drill Bits,Suitable for Drilling in Hard Metal, Stainless Steel, Cast Iron,10 Pieces

  • 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.
  • Perfect suitable for drilling in hard metals such as stainless steel and cast iron, and other softer material are also possible..
  • 10pcs of 1/4" cobalt drill bit are packed in a plastic case for easy storage and carrying , manufactured in strict accordance with ANSI B94-11M..
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Flexible Drill Extension Hex Shank Drill Nut Driver Bit Set, 2pcs Bendable Drill Bit Extension, 3pcs 1/4 3/8 1/2\ Universal Socket Adapter Set, 105° Right Angle Drill, 3pcs Screwdriver Bit Set

  • Drill Extension Kit: This set of drill extension kit 9PCS, including 2pcs flexible drill extension, 3 pieces of 1/4 3/8 1/2" universal socket adapter kit, 3*quick release magnetic drill extension Pieces, 1*105° right-angle drill bit extension, a complete match to meet daily needs..
  • Universal Socket Adapter Set: There are 3 pieces of socket adapters in different sizes, 1/4 inch, 3/8 inch, 1/2 inch, but they have the same size hex drill bit, which is 1/4 inch.
  • You can match them with your pneumatic screwdriver, electric screwdriver, pneumatic drill, manual screwdriver and other installation for the hexagonal tool..
  • Hex Shank Flexible Drill Extension: It come with a 105° right angle drill extension bit and a 11.7 in flexible extension bit.easy, lightweight, fast, connect to the standard hex screwdriver..
  • Screwdriver Bit: 1/4 Inch Hex Shank Magnetic Extension Chuck Adapter Quick Release Bar Socket Screwdriver Bit Holder | 60mm/ 100mm/ 150mm Length,Suitable for electric, pneumatic screwdrivers and other screwdriver bits of power tools, drill extended..
  • Widely Used: Installed in the installation of pneumatic screwdrivers, electric screwdrivers, pneumatic drills, manual screwdrivers and other hexagonal tools. A must-have package for conversion. Sufficient qua....
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