RUKO 108220E Tap drill bit set 20 mm 1 pc(s)

Core driller HSS Co 5 with Weldon shank (3/4"). Ø 20 mm

Ø 20 mm, cutting depth: 30 mm - core drill bits made of cobalt-alloyed high-performance high-speed work steel with higher heat hardness resistance. Ideal for drilling hard to machine materials and for the most demanding jobs. Suitable for the processing of unalloyed and alloyed steels (up to 1200 N/mm²), hot and cold work steels, as well as for remuneration and application steels.Through a further developed cutting geometry a significantly improved cutting behavior could be achieved, Which has a positive effect on cutting performance and tool life.+ optimized cutting geometry for increased cutting performance and reduced cutting forces.+ the cutting angles are designed for universal use in different steel grades.+ improved chip removal through U-shaped removal. The special geometry of the cut-out reduces the thermal load on the HSS core drill, as the heat generated during machining is dissipated with the chip as far as possible.+ Reduces friction between the HSS core drill and the workpiece by means of optimized, spiral-shaped guide lugs. Can be used in all column and magnetic stand drills with Morse cone in conjunction with RUKO recording holder No. 108 302 / 108 303 / 108 315 / 108 316, the RUKO EasyLock No. 108 312 / 108 313 / 108 314 or with direct world key recording such as RUKO magnetic stand drill machine RS5e / RS10.

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