RUKO Step drill bit 6.5 - 32.5 mm HSS Total length 79 mm 1 pc(s)

Size No. 15. Drilling range 6.5 - 32.5 mm.NEXT GENERATION - for through hole according to DIN/EN 50262.With this robust tool, sheets can be centered, drilled, drilled and deburred in one operation.The deep-ground and spiral-shaped clamping provides absolute smoothness and high cutting performance. In particular, chips that do not break are cleanly transported away as with a twist drill. This reduces the formation of surface-mounted cutting edges and cold welding on the cutting edges. The cone makes it easier to retract through-hole plates.HSS:High-performance high-speed working steel for drilling in well-machined materials with a strength of up to 900 N/mm². This text is machine translated.