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.
#COBALT DRILL BITS METRIC SERIES#
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. As a result the cobalt drill is continually drilling into hardened steel.We have a wide variety of high-performance drilling tools, including our cobalt and black oxide drill bits. To cut beneath the area which is hardening. The cobalt drill, with its thick web, cannot be fed at a fast enough rate This means the drill is cutting softer steel. Penetrate the work hardening stainless fast enough to continually cut beneath the chip which is hardening from deformation. HSS Magnum™ Super Premium Drill Bits - Norseman™ Drill and Tool a drill with its thin web will They can be used to drill metal, hardwood, and most other materials at greater cutting speeds than carbon steel bits, and have largely High speed steel (HSS) is a form of tool steel high speed steel bits are hard, and much more resistant to heat than high carbon steel. High speed steel taps, feed and speed for both drills and taps and calculator, drill bit terminology and information on our growing company. Since 1951, Norseman™ Drill and Tool - presents our current tools in the product catalog in downloadable sections, along with troubleshooting of high speed steel drill bits and America´s Finest High–Speed Cutting Tools™
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