ReviewsCobalt Drill Bit

OXMUL M35 Step Drill Bit for Metal 3/16 to 7/8 Cobalt Bits Extra-Heavy Duty for Stainless Steel Hard Steel Mild Metal Aluminum Wood Industrial Grade 12-Steps Co35A2-A

[Extra-Heavy Duty+ for Stainless Steel] The M35 Cobalt Drill Bits is Industrial Grade and can drill 8X longer life and 3X faster. This Cobalt Drill bits can help you cut more holes, extra-heavy duty+ for Stainless Steel, Hard steel, Mild Metal, Galvanized Steel, Aluminum,Iron, Wood Plate,PVC and Copper. If you're expanding a lot of holes in metal sheet then please choose this step drill bit.
[M35 Cobalt Steel] This M35 Cobalt Drill bit can successfully drill more than 35 holes easily into 1/5" thick Stainless Steel plate like knife through butter!.
[12 Steps ︱2-Spiral-Flute] 12 Steps: from 3/16", 1/4", 5/16", 3/8", 7/16",1/2", 9/16", 5/8", 11/16", 3/4" 13/16" to 7/8". 2-Spiral-Flute:Clears Chips faster.
[Cutting Fluid] Cutting Fluid must be poured during work for longer life! Prohibit water-cooling to prevent rust!.
[3/8" Tri-Flatted Shank] Fits into power tools chuck securely and eliminates slip.

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XLCMSY Cobalt Drill Bit Set, M35 HSS Metric Straight Shank Twist Drill Heat Resistant Metal Drill Bits for Hard Metal, Stainless Steel, Hardened Steel, Cast Iron and Wood, 1.5-6.5mm (13 Pcs)

【Heat Resistant】 This metric straight shank twist drill set is made of 5% cobalt high speed steel, adding molybdenum and cobalt to form a hardened alloy with a Rockwell hardness of 67, It is super heat resistant and wear resistance can cut hard metals quickly, suitable for drilling high hardness materials, up to 10 times life than ordinary HSS drill bits..
【Safe & Eco-friendly】 High speed steel with 5% cobalt, durable, safe and eco-friendly, providing longer tool life and reducing environmental pollution, It is a very practical and user-friendly drill bit for cutting through hardened material, golden surface treatment holds up lubricant better for smoother drilling..
【Lightweight & Durable】 Designed with a 135 degree split point, these metric drill bits are very lightweight, eliminating the need for a center punch, making cutting faster and less powerful, preventing walking and cutting stainless steel more precisely, thanks to its precision grinding inclined blade design, each bit ensures fast drilling with excellent chip removal..
【Multiple Sizes & Widely Used】The metal drill bits set for steel ....

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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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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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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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ACROTOL 26 Pieces Bolt Extractor Set, Spiral Screw Extractor Set and Drill Bits, Extraction Socket Set for Removing Damaged, Rusted, Rounded Bolts, Nuts and Screws

[Specifications] 26 PCS Screw&Bolt Extractors/Drill Bit Set includes 6 easy out style spiral flute extractors, 13 PCS bolt&nut extractors, 1 PC 1/4" hex adapter and 6 PCS drill bits..
[Size] Nut&Bolt Extractor Size: 1/4inch, 5/16inch (8mm), 3/8 inch, 10mm, 7/16 inch (11mm), 12mm, 1/2inch, 13mm, 9/16inch (14mm), 5/8 inch (16mm), 17mm, 11/16 inch, 3/4 inch (19mm), included 3/8"-1/4" hex adapter. Spiral Flute Extractors Size: 1#, 2#, 3#, 4#, 5#, 6#. Drill Bits Size: 3/32", 1/8", 5/32", 1/4", 9/32", 3/8"..
[Material] Every screw & bolt extractor is made from high hardness chrome-molybdenum steel, the cobalt drill bit is made from HHS..
[Note] Cobalt drill bits should not used for stainless steel. The bolt extractor with unique plum-shaped internal thread design provides excellent torque and can be used to rotate fasteners with deep bolts..
[Function] Spiral flute extractors are perfect for common fasteners, the bolt extractors are for freeing partly-exposed fasteners. The kit also includes right hand cobalt drill bits for fasteners, which can be used to help drill these fasteners..

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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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