Top 8 Best Cobalt Drill Bits For Hardened Steel

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. Includes 116, 564, 332, 764, 18, 964, 532, 316, 732, 14, 516, 38, 12.

Perfect Drill Bits Precision grinding process for a clean surface and high grinding accuracy. Universal round drill shank, widely applicable of tool holding systems and tightly clamped. 135 Split Point Twist Design The 135 degree fast cutting point is automatically centered and penetrates quickly with less pressure, reducing walking, fully ground drill bit with sharp and durable cutting edge. Twist design for clear chips faster. Enhanced M35 Alloy Material These drill bits contain 5 Cobalt alloy steel, which increases wear resistance and durability. Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. Set Includes 116, 564, 332, 764, 18, 964, 532, 1164, 316, 1364, 732, 1564, 14, 1764, 932, 1964, 516, 2164, 1132, 2364, 38, 2564, 1332, 2764, 716, 2964, 1532, 3164 and 12 inch bits Comes in metal indexed storage case for easy storage. QUALITY COMMITMENT If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back. 100 Satisfaction Guarantee for risk-free shopping.

SET OF 13 COBALT DRILL BITS - In the following imperial sizes 14, 1564, 732, 1364, 316, 1164, 532, 964, 18, 764, 332, 564, 116. 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..

TOUGH The Bosch CO21 Drill Bit Set is manufactured from cobalt for drilling in hard and abrasive materials such as stainless, cast iron, and high-density metal. Also useful for general drilling in light-gauge metal, wood, and plastic.. ACCURACY Featuring a no-skate split-point tip for clean, precise holes and accurate starts.. RELIABLE The three-flat shank design promotes better grip and guards against slipping on bits 316 in. and larger. PERFORMANCE Designed for very high drilling temperatures for superior performance in stainless steel. Bosch Cobalt Metal Drill Bits are solid, reliable, and provide 4X longer life than standard high-speed drill bits.. VERSATILITY Includes laser-etched marking to provide clearly marked bit diameter. Included bit sizes 116 in., 564 in., 332 in., 764 in., 18 in., 964 in., 532 in.,1164 in., 316 in., 1364 in., 732 in., 1564 in., 14 in., 516 in., 38 in., 12 in..

Set of 29 jobber length drill bits includes inch sizes 116 to 12 in 164 increments. Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials. Gold oxide finish lubricates the drill bit and provides wear resistance. Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging. Meets ANSI specifications.

High QualityM35 Cobalt steel precision ground drill bits for extra durability and long lifetime. Efficient DesignStubby drill bits measure from 1.84 to 2.32-inch only, allowing access to hard-to-reach and tight spaces. 135 split point two-blades special design drill tip 18-inch and larger for perfect self-centering and fast drilling. Multi-Purpose UseSuitable for drilling stainless steel and various hardened metals such as cast iron, titanium, bronze, aluminium, etc. All drill bits come with one piece 14-inch hex shank compatible with standard and quick change chucks and drivers. Popular SizesIncludes imperial sizes 332, 18, 316, 14 and 516. Unique PackagingPacked in special plastic box for easy storage, imprinted with drill bit sizes for easy identification. Sliding clip on backside of box for hanging on pegboards.

10Pcs 14 Cobalt Drill Bits10Pcs - 14Dia 6.35mm x 2-34Flute 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 SteelIndustry grade M35 high speed steel drill bit set, much harder than HSS used in other similar drill bits set. These drill bits contain 5 Cobalt, which increases wear-resistance and durability.. Fully Ground Process 135 Split PointFully 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 ApplicationPerfectly 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 WarrantyIf you are not fully satisfied for any reason, please contact us for 100 refund or replacement..

29 PIECES INCLUDED 116, 564, 332, 764, 18, 964, 532, 1164, 316, 1364, 732, 1564, 14, 1764, 932, 1964, 516, 2164, 1132, 2364, 38, 2564, 1332, 2764, 716, 2964, 1532, 3164, 12.. HSS WITH 5 COBALT Durable, Higher Heat Abrasion Resistance.. PRECISE 135SPLIT POINT TWIST DESIGN Prevent walking, clear chips and particles faster.. 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.. ORGANIZED HOLDER Set includes the drill bit holder with size index for easy storage and organizing..

Premium True 5 Cobalt Steel with 68 HRC- The Marked Cobalt Content of Ordinary Drill Bits May be False, but This Drill Bits Set is Made of Cobalt Ore from Our Own Mine, Which Indeed Contains 5 Cobalt. Although the Cost and Price are Slightly Higher, It Usually is able to Provide 3X Heat,Wear and Chip Resistance and 3X Tool Life.. Split Point Design and Fully Ground Process- Compared with Other Ordinary Drill Bits, This Drill Bits Set is Particularly Suitable for Heavy Duty Work, Such as Cutting through Stainless Steel,Steel Plate,Iron Sheet, Cast Iron and Hardwood, and Drilling Out Bolts Studs and Screws.. 3X Efficiency 3X Tool Life- This Cobalt High Speed Steel Drill Bits Set is Typically Capable of Running 3 Times Faster. Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.. Sharp Drill Bit Edge- This Kind of Drill Bits Beast Can Even Cut Hardened Metal into Long Iron Bars, While a Dull Drill Bit Can Just Slowly Wear Through Metal.. 13 Pieces Jobber Length Industrial Drill Bits Includes116, 564, 332, 764, 18, 964, 532, 1164, 316, 1364, 732, 1564, 14 DIA 164 Inch Increments.

20PCS 316 Cobalt Drill Bits20PCS - 316Drilling Diameter x2-516Flute Lengthx3-12Overall Length Metal Drill Bits. This drill bit fits the majority of power drill currently on the market.. M35 Cobalt High Speed SteelIndustry grade M35 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 PointFully 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 ApplicationPerfectly 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 WarrantyIf you are not fully satisfied for any reason, please contact us for 100 refund or replacement..