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Material: carbon steel black chamfering machine.
Including hex wrench
Function: it can drill a screw hole and a sink hole at the same time, and fix the screw cover on the same axis.After tightening, the screw cap is located below the sub-plane of the board!
Suitable for drilling machine with chuck or joint, suitable for drilling in hardwood and wood layer
Specification | Diameter | Total length | Material |
5# | 1.87mm | 49.63mm | HSS 4241 |
6# | 2.33mm | 56.57mm | |
8# | 2.74mm | 68.67mm | |
10# | 2.81mm | 68.84mm | |
12# | 3.53mm | 70.5mm |