Version:
With point geometry shape C.
Advantage:
Particularly suitable for drilling under difficult conditions, e.g. insufficient cooling of the cutting edges due to poor chip evacuation.
Recommendation:
Maximum drilling depth:
L2 = LC - 1.5 × DC.
Note:
Suitable NC spotting drills No.
112120,
112140 and
112170 with
142° tip angle for enhanced process reliability