Dormer
Dormer HSS Countersink, 6.3mm Head, 3 Flute(s), 90°, 1 Piece(s)
Part No.
G5066.3
Procurement Intelligence
Dormer HSS Countersink from the standard precision tooling series for general-purpose metal working. This is a 90° countersink tool used to chamfer and prepare holes for flush-mounted fasteners in drilling operations. Critical verification: confirm 6.3mm head diameter matches your fastener countersink requirement and that HSS material suits your workpiece hardness.
Flush fastener hole preparation
Before ordering — verify:
| ☐ | HSS material suitability |
| ☐ | 90° angle compatibility |
| ☐ | Single piece quantity |