Cutter from the Humm Hard series.
Six-edge cylindrical tool for machining hardened steel. It is characterized by stability and long service life with a hardness of 48 to 65 HRC. Its chip flute design ensures improved milling deflection, and the PVD coating increases resistance and resistance to adhesion and abrasion, which further increases the tool life.
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| Dc | Ds | Lr | Lc | Z | R | Article No. |
| 12.00 | 12.00 | 35 | 82 | 6 | – | 860.120.00 |
| 12.00 | 12.00 | 35 | 82 | 6 | 0.5 | 860.120.05 |
| 12.00 | 12.00 | 35 | 82 | 6 | 1 | 860.120.10 |
| 12.00 | 12.00 | 35 | 82 | 6 | 1.5 | 860.120.15 |
| 12.00 | 12.00 | 35 | 82 | 6 | 2 | 860.120.20 |
 | Material | Machining parameters | Outer diameter (mm) | ø12 |
| ~ 55 HRC | 1.5 Dc x 0.03 Dc | spindle revolutions (min) | 2 800 | |
| feed (mm/min) | 1 800 | |||
| ~ 62 HRC | 1.5 Dc x 0.02 Dc | spindle revolutions (min) | 2 300 | |
| feed (mm/min) | 1 400 | |||
| ~ 65 HRC | 1.5 Dc x 0.02 Dc | spindle revolutions (min) | 2 000 | |
| feed (mm/min) | 800 |
 | Material | Machining parameters | Outer diameter (mm) | ø12 |
| ~ 55 HRC | 1.5 Dc x 0.03 Dc | spindle revolutions (min) | 2 500 | |
| feed (mm/min) | 800 | |||
| ~ 62 HRC | 1.5 Dc x 0.02 Dc | spindle revolutions (min) | 2 000 | |
| feed (mm/min) | 600 | |||
| ~ 65 HRC | 1.5 Dc x 0.01 Dc | spindle revolutions (min) | 1 800 | |
| feed (mm/min) | 300 |
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