
| P | H | M | K | N | Type | Teeth | |||
| N/mm2 | HRC | N/mm2 | HB | N/mm2 | standard | N | 30° ball 2 | ||
| Twist | |||||||||
| 178250 | coated | ||||||||
| < 1200 | < 60 | < 850 | <300 | Alu >600 Brass < 600 | |||||
| 178255 | UNI | ||||||||
| vc = m/min. | 6535 HA | ||||||||
| 178250 | 65-145 | 30-35 | 40-65 | 85-145 205-520 | 95-120 | Centre cut shank | medium | Solid Carbide End Mills | |
| 178255 105-240 | 50-60 | 65-95 | 145-230 280-880 | 160-200 | 17 |
178250 PRECITOOL, medium 178255 PRECITOOL, medium, ALCRONA
| d1 mm | 178250 | 178255 | r mm | l1 mm | l2 mm | d2 mm | fz mm/tooth |
| 1,00 | | | 0�50 | 38 | 3 | 3 | 0�006 - 0�010 |
| 1,50 | | | 0�75 | 38 | 5 | 3 | 0�006 - 0�010 |
| 2,00 | | | 1�00 | 38 | 7 | 3 | 0�006 - 0�010 |
| 2,50 | | | 1�25 | 38 | 7 | 3 | 0�006 - 0�010 |
| 3,00 | | | 1�50 | 38 | 9 | 3 | 0�010 - 0�016 |
| 3,50 | | | 1�75 | 50 | 12 | 4 | 0�010 - 0�016 |
| 4,00 | | | 2�00 | 50 | 14 | 4 | 0�018 - 0�023 |
| 4,50 | | | 2�25 | 50 | 14 | 5 | 0�018 - 0�023 |
| 5,00 | | | 2�50 | 50 | 16 | 5 | 0�020 - 0�026 |
| 6,00 | | | 3�00 | 64 | 19 | 6 | 0�025 - 0�029 |
| 7,00 | | | 3�50 | 64 | 19 | 8 | 0�025 - 0�029 |
| 8,00 | | | 4�00 | 64 | 21 | 8 | 0�032 - 0�042 |
| 9,00 | | | 4�50 | 70 | 22 | 10 | 0�032 - 0�042 |
| 10,00 | | | 5�00 | 70 | 22 | 10 | 0�039 - 0�053 |
| 11,00 | | | 5�50 | 70 | 25 | 12 | 0�039 - 0�053 |
| 12,00 | | | 6�00 | 75 | 25 | 12 | 0�048 - 0�063 |
| 14,00 | — | | 7�00 | 90 | 30 | 14 | 0�048 - 0�063 |
| 16,00 | | | 8�00 | 90 | 32 | 16 | 0�058 - 0�079 |
P H M K N Factory Type Teeth
Cat. no. VHM Blade form
| N/mm2 | HRC | N/mm2 | HB | N/mm2 | 30° ball 2 N standard | ||||
| 178270 | Twist | ||||||||
| coated | |||||||||
| < 1200 | < 60 | < 850 | <300 | Alu >600 Brass < 600 | |||||
| 178275 | UNI | ||||||||
| vc = m/min. | 6535 HA | ||||||||
| Shank | |||||||||
| 178270 | 75-150 | 35-45 | 45-75 | 100-170 200-630 | relieved long shank Centre cut | ||||
| 195-250 | |||||||||
| 178275 125-290 | 60-70 | 80-125 170-290 340-1050 | |||||||
| Note: | |||||||||
| Relieved shank allows larger operating length | |||||||||
| 178270 PRECITOOL, long | (h9) | ||||||||
| 178275 PRECITOOL, long, ALCRONA | |||||||||
| d | r | l | l | l | d | d | fz | ||
| 1 | 178270 | 178275 | 1 | 2 | 4 | 3 | 2 | ||
| mm | mm | mm | mm | mm | mm | mm | 178270 mm/tooth | ||
| 2,00 | | | 1�0 | 75 | 5 | 20 | 1�8 | 6 | 0�010 - 0�018 |
| 3,00 | | | 1�5 | 75 | 6 | 20 | 2�8 | 6 | 0�016 - 0�024 |
| 4,00 | | | 2�0 | 75 | 8 | 20 | 3�8 | 6 | (h9) 0�023 - 0�030 |
| 5,00 | | | 2�5 | 100 | 20 | 40 | 4�8 | 6 | 0�026 - 0�032 |
| 6,00 | | | 3�0 | 100 | 20 | 40 | 5�8 | 6 | 0�029 - 0�041 |
| 8,00 | | | 4�0 | 100 | 20 | 40 | 7�8 | 8 | 0�042 - 0�058 |
| 10,00 | | | 5�0 | 100 | 20 | 40 | 9�8 | 10 | 0�053 - 0�073 |
| 12,00 | | | 6�0 | 100 | 20 | 40 | 11�7 | 12 | 178275 0�063 - 0�090 |
| P | H | M | K | N | Teeth Type Factory | ||||
| Cat. no. | Blade form VHM | ||||||||
| N/mm2 | HRC | N/mm2 | HB | N/mm2 | 30° ball 2 N standard | ||||
| 178271 | Twist | ||||||||
| coated | |||||||||
| < 1200 | < 60 | < 850 | <300 | Alu >600 Brass < 600 | |||||
| 178276 | UNI | ||||||||
| vc = m/min. | 6535 HA | ||||||||
| Shank | |||||||||
| 178271 | 75-150 | 35-45 | 45-75 | 100-170 200-630 | relieved overlong shank Centre cut | ||||
| 195-250 | |||||||||
| 178276 125-290 | 60-70 | 80-125 170-290 340-1050 |
Note: Relieved shank allows larger operating length (h9) 178271 PRECITOOL, extra long
178276 PRECITOOL, extra long, ALCRONA 178271
| d | r | l | l | l | d | d | fz | |||
| 1 | 178271 | 178276 | 1 | 2 | 4 | 3 | 2 | (h9) | ||
| mm | mm | mm | mm | mm | mm | mm | mm/tooth | |||
| 10,00 | | | 5�0 | 150 | 20 | 60 | 9�8 | 10 | 0�053 - 0�073 | |
| 12,00 | | | 6�0 | 150 | 20 | 60 | 11�7 | 12 | 0�063 - 0�090 | |
| 16,00 | | | 8�0 | 150 | 30 | 70 | 15�7 | 16 | 0�079 - 0�110 | |
| 20,00 | — | | 10�0 | 150 | 30 | 80 | 19�7 | 20 | 178276 0�097 - 0�130 |