Subland drills DIN 8374 RN-fine, 90°, 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.