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Drill bit Tvardy HSS M35 cobalt for metal 9 mm
Cheapest with
Latvijas Pasts pakomāts
Latvijas Pasts pakomāts
1.99 €
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Tvardy HSS M35 cobalt drill bit 9 mm is engineered for professional metalworking. Made from high-speed steel with an M35 cobalt alloy, this 9 mm drill bit offers improved heat resistance and greater wear life compared with standard HSS bits. The 3-flute geometry and robust point design provide reliable centering and efficient chip evacuation when working with stainless steel, alloy steel and other hard metals. The bit is compatible with standard drill chucks and bench drills used in workshop and industrial settings.
The M35 cobalt composition increases red-hardness, allowing the bit to retain cutting performance at higher temperatures and under sustained loads. Precision ground flutes and a hardened shank provide dimensional stability and extended service life. Its design reduces burring and minimizes workpiece deformation when drilling through tough materials. The 9 mm diameter delivers a balance between rigidity and cutting speed for medium-diameter holes in metal.
Secure the drill bit in a suitable chuck and ensure it is properly tightened. For best results when drilling metals, mark the hole position and, if necessary, use a center punch to prevent wandering. Start at a low speed to establish the hole, then increase RPM appropriate to the material thickness and hardness. Apply steady, moderate pressure and use cutting fluid or coolant to reduce heat buildup and extend tool life. Withdraw the bit periodically to clear chips and allow cooling when drilling deep holes.
Use cutting fluid when working with stainless and alloy steels, select lower speeds for harder materials, and inspect the bit for wear or chipping before each use to maintain drilling accuracy and safety.
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