PROTEC.class 05102214 Special drill step drill HSS SP size 15, 6.5-32.5 PSTB

High-quality HSS steel (DMO5) brightly ground, point thinning: cross grinding in accordance with DIN 1412C, tip angle: 118°, step angle: 90°, surface: bright, 3-point flat shank for perfect hold of the tools in the drill chuck