
1 A short pre-hole 20 mm long (minimum) with H8 hole tolerance should be prepared to guide the long drill (a standard DR drill or an endmill can be used).
1.1 Penetration with an endmill 2.1 Penetration by drilling
1.2 Enlargement with the endmill 2.2 DRG-MF boring
3 Deep hole drilling with DR-DH
2 The DR-DH drill should enter into the pre-hole at slow rotation speed and with coolant supply.
| DR-DH ø##.#[mm] | Central Insert | Intermediate Insert | Peripheral Insert | Guiding Pad |
| 25.4-28.5 | SOMX 050204… | SOMX 050204… | SOMX 050204… | GPS-06-20-075 |
| 28.6-30.0 | SOMX 050204… | SOMX 060304… | SOMX 050204… | GPS-07-20-120 |
| 30.1-33.0 | SOMX 060304… | SOMX 060304… | SOMX 060304… | GPS-07-20-120 |
| 33.1-37.5 | SOMX 060304… | SOMX 070305… | SOMX 060304… | GPS-08-25-155 |
| 37.6-40.5 | SOMX 070305… | SOMX 070305… | SOMX 070305… | GPS-08-25-155 |
| 40.6-42.9 | SOMX 070305… | SOMT 09T306… | SOMX 070305… | GPS-08-25-155 |
| 43.0-47.5 | SOMT 09T306… | SOMT 09T306… | SOMT 09T306… | GPS-08-25-155 |
| 47.6-51.0 | SOMT 100408… | SOMT 100408… | SOMT 100408… | GPS-10-30-200 |
| 51.1-54.0 | SOMT 100408… | SOMT 110408… | SOMT 100408… | GPS-10-30-200 |
| 54.1-57.4 | SOMT 100408… | SOMT 110408… | SOMT 110408… | GPS-10-30-200 |
| 57.5-61.0 | SOMT 110408… | SOMT 110408… | SOMT 110408… | GPS-14-40-250 |
| 61.1-63.0 | SOMT 110408… | SOMT 120408… | SOMT 110408… | GPS-14-40-250 |
| 63.1-69.5 | SOMT 120408… | SOMT 120408… | SOMT 120408… | GPS-14-40-250 |
Spare Parts
| Insert | Screw | Key | Guiding Pad | Clamping Screw | Key |
| SOMX 050204... | SR 34-533/L | T-6/51 | GPS-06-20-075 | SR 11201753-1 | T-7 |
| SOMX 060304... | SR 34-508/L | T-7/51 | GPS-06-20-085 | SR 11201753-1 | T-7 |
| SOMX 070305... | SR 14-560 | T-8/51 | GPS-06-20-100 | SR 11201753-1 | T-7 |
| SOMT 09T306... | SR 34-506 | T-9/51 | GPS-14-40-250 | SR 11201752-2 | T-15 |
| SOMT 100408... | SR 14-571 | T-10/51 | GPS-07-20-120 | SR 11201753-4 | T-9 |
| SOMT 110408... | SR 14-544/S | T-15/51 | GPS-10-30-200 | SR 11201753-6 | T-15 |
| SOMT 120408... | SR 14-544/S | T-15/51 |