Fabory Spiralbohrer RN-fine HSS Blanc 19,0-10,5MM

Subland twist drills with straight shank for drilling clearance holes – accuracy class “fi ne” – according to ISO 273, with the simultaneous countersinking for the screw head (90˚) to shape A accuracy class “fi ne” (f). The cutting speed is governed by the larger diameter but the feed must suit the smaller.