| Mã đặt hàng | Số mũi khoan | Size | Dải khoan | Đường kính chuôi kẹp | Chiều dài chuôi kẹp | Chiều dài |
| mm | mm | Ø mm | mm | |||
| 257750.0100 | 3 | 0 | 3...14 | 6 | 25 | 58 |
| 1 | 8...20 | 8 | 25 | 66 | ||
| 2 | 16...30.5 | 9 | 25 | 77 |
Type KSB conical
HSS, cylindrical shank with three-surface grind, cone 20°, twist ground inside.
The progressive boring drill makes holes in thin materials without pre-boring, and expands existing
holes. Can also be used for slanted holes and tubes.
