TOOLMAYS Metric Step Drill Bit M35 Cobalt AlTiN-Coated Cone Drill Bit for Stainless Steel, Plastic, Metal and Wood, 15 Steps (4-32mm) Unibit Spiral Flute Step Bit

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  • TiAIN coating the TiAIN coating in industrial quality with very high hardness gives step drills a longer lifetime, higher processing speeds and excellent heat resistance. This coating has excellent heat, wear and corrosion resistance, as well as strong adhesion and low friction.
  • Helpful tips oil is needed at first use to give the auger an easy start and reduce friction. As the auger is a wearing part, it should be replaced regularly, especially if it is heavily loaded.
  • 15 steps (diameter 4-32 mm) our HSS step drill includes 15 steps from 4 mm to 32 mm, namely 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 and 32 mm. It is multifunctional for pre-drilling, drilling, deburring and all other daily drilling needs.
  • 10 mm drill shank thanks to the special production, our cobalt drill bits fit perfectly into all types of cordless screwdrivers and drills, especially in bench drills. The shank length is 24 mm and the shank torque no less than 1100 Nm.

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