Helicoidal carbide solid drill bit Dormer
Drilling diameter | 4 mm |
---|---|
Total length | 90 mm |
Length of cut | 48 mm |
Drilling diameter | 4 mm |
---|---|
Total length | 90 mm |
Length of cut | 48 mm |
Din standard | dormer norm |
Ratio of diameter to length of drill hole | 8xd |
Tip angle | 140 ° |
Internal cooling | yes |
Usually arrives within 14 working days