![]() BEST METRIC: Stroton Metric M42 8 Cobalt Twist Drill Bits Set. Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits. Made of cobalt steel, which has better heat and wear resistance than high-speed steel, they can run up to 25 faster and have a longer tool life. BEST FOR STAINLESS STEEL: Milwaukee 15-Piece Cobalt Red Helix Drill Bit Kit. These jobbers'-length bits have the rigidity and length required for most applications. We guarantee our drill bits will deliver more performance with less effort, due to faster work progress, better results and longer lifetimes. BEST M42: Bosch 14-Piece Cobalt M42 Drill Bit Set. There are several grades of HSS raw material in which to manufacture drill bits, and we only use the highest grade available. ![]() When it comes to manufacturing drill bits, ours a second to none. We also supply our drill bits in the following sets: Black oxide drill bits are not ideal for tapping or precise drilling given their flexible composition.Īvailable as single items or in discounted packs of 5, 10 or 20, our black oxide metric drill bits range from 1mm – 13mm and 16mm – 30mm. Our black oxide bits are suitable for engineering, fabrication and commercial trade work, including drilling of plate steels and hardened alloys. With a 135° split point, these drill bits offer good flexibility, excellent lubricity and remain sharp. Our drill bits are manufactured using industrial grade HSS material. The black oxide range includes metric, imperial and reduced shank drill bits. Our imperial range is available in sizing 3/64 through to 1/2 and sold as single items or in discounted packs of 5, 10 or 20.Īlso available in discounted packs of 5, 10 or 20 or as single items are our long series – 1/8, 9/64, 5/32, 11/64, 3/16 and 13/64 – and double ended drill bits in 1/8, 9/64 and 5/32. The jobber series are available as single items or in discounted packs of 5, 10 or 20. Sizing ranges from 1mm to 15mm, with drill bits over 13mm determined as reduced shank. Due to their unique hardness, cobalt drill bits will not flex and are unforgiving, especially if used in a battery drill therefore we advise caution when using cobalt drill bits under 6mm with a hand held drill. The added cobalt ensures heat resistance and resistance to wear. These are general purpose engineering and fabrication drill bits, suitable for stainless steel, hardened steel, tapping and precision drilling. Self centering and long lasting, our cobalt drill bits have a standard helix, right hand spiral. ![]() With a 135° split point, cobalt drill bits are suitable for harder materials. Our cobalt range includes jobber series, reduced shank, double ended, imperial and long series drill bits. To learn more about how and for what purposes Amazon uses personal information (such as Amazon Store order history), please visit our Privacy Notice.We have a wide variety of high-performance drilling tools, including our cobalt and black oxide drill bits. You can change your choices at any time by visiting Cookie Preferences, as described in the Cookie Notice. Click ‘Customise Cookies’ to decline these cookies, make more detailed choices, or learn more. Third parties use cookies for their purposes of displaying and measuring personalised ads, generating audience insights, and developing and improving products. This includes using first- and third-party cookies, which store or access standard device information such as a unique identifier. If you agree, we’ll also use cookies to complement your shopping experience across the Amazon stores as described in our Cookie Notice. We also use these cookies to understand how customers use our services (for example, by measuring site visits) so we can make improvements. VersaDrive Blacksmith Drill Bits are a premium grade 8 Cobalt drill bit with fully ground flutes, 135 Split point and Titanium coating for faster drilling. The 3 piece set includes 2 of the most common IRWIN Unibit Step Drill Bits along with the new double-flute design 4 Unibit that offers 2X FASTER DRILLING. ![]() We use cookies and similar tools that are necessary to enable you to make purchases, to enhance your shopping experiences and to provide our services, as detailed in our Cookie Notice. IRWIN Unibit 3-Piece Set Step Drill Bit Set (3/16-in to 7/8-in) IRWIN Unibit Step Drill Bits are ideal for drilling holes into thin materials such as stainless steel or sheet metal.
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