
Minimum Diameter Maximum Diameter ØD ØD
Ramping Angle
Minimum and Maximum Diameters Ramping Angle
| Insert Cat. No. | ØDc | Helical | Millilng | Taper Cutting |
| Min. | Max. | Max. Ramping Angle | ||
| 25 | 35 | 49 | 1°30‘ | |
| 32 | 49 | 63 | 0°30‘ | |
| SOMT 08 04- | 40 | 65 | 79 | 0°30‘ |
| 50 | Impossible | Impossible | 0°30‘ | |
| 63 | Impossible | Impossible | Impossible | |
| 25 | 35 | 48 | 3° | |
| 32 | 49 | 62 | 1°30‘ | |
| SOMT 08 08- | 40 | 65 | 78 | 1° |
| 50 | 85 | 98 | 0°30‘ | |
| 63 | 111 | 124 | 0°30‘ | |
| 25 | 34 | 47 | 4°30‘ | |
| 32 | 48 | 61 | 2°30‘ | |
| SOMT 08 12- | 40 | 64 | 77 | 1°30‘ |
| 50 | 84 | 97 | 1° | |
| 63 | 110 | 123 | 0°30‘ |
| Insert Cat. No. | ØDc | Helical | Millilng | Taper Cutting |
| Min. | Max. | Max. Ramping Angle | ||
| 40 | 56 | 79 | 1° | |
| SOMT 12 04- | 50 | 76 | 99 | 0°30‘ |
| 63 | Impossible | Impossible | Impossible | |
| 40 | 56 | 78 | 1°30‘ | |
| SOMT 12 08- | 50 | 76 | 98 | 1° |
| 63 | 102 | 124 | 0°30‘ | |
| 40 | 55 | 77 | 2°30‘ | |
| SOMT 12 12- | 50 | 75 | 97 | 1°30‘ |
| 63 | 101 | 123 | 1° | |
| 40 | 55 | 76 | 3°30‘ | |
| SOMT 12 16- | 50 | 75 | 96 | 2° |
| 63 | 101 | 122 | 1°30‘ |
| Insert | Max. Width of Cut |
| Cat. No. | ae (max) |
| SOMT08 | 6mm |
| SOMT12 | 10mm |
ae (max) Lower the feed rate when plunge milling.
| Cuttin Seed | Insert | Ø | 25 | Ø | 32 | Ø | 40 | Ø | 50 | Ø | 63 | |||
| ISO | Wk Mil | Gd | g p | |||||||||||
| or atera | rae | (vc(m/min) | Cat. No. | ap (mm) | ft (mm/t) | ap (mm) | ft (mm/t) | ap (mm) | ft (mm/t) | ap (mm) | ft (mm/t) | ap (mm) | ft (mm/t) | |
| General Steel | SOMT08 | 0,8 | 0,8 | 0,8 | 0,8 | - | - | 0,8 | 0,8 | 0,8 | 0,8 | |||
| P | ACP200 | 100 -150- 200 | SOMT12 | - | - | - | - | 1,0 | 1,0 | 1,0 | 1,0 | 1,0 | 1,0 | |
| Alloy Steel | ACP200 | 80130180 | SOMT08 | 0,7 | 0,8 | 0,7 | 0,8 | - | - | 0,7 | 0,8 | 0,7 | 0,8 | |
| -- | SOMT12 | - | - | - | - | 0,8 | 1,0 | 0,8 | 1,0 | 0,8 | 1,0 | |||
| K | Stainless Steel | ACM300 | 80120150 | SOMT08 | 0,8 | 0,7 | 0,8 | 0,7 | - | - | 0,8 | 0,7 | 0,8 | 0,7 |
| ( | X5CrNiS18 10, other) | -- | SOMT12 | - | - | - | - | 1,0 | 0,8 | 1,0 | 0,8 | 1,0 | 0,8 | |
| M | Cast Iron | ACK | 112 | SOMT08 | 0,8 | 1,0 | 0,8 | 1,0 | - | - | 0,8 | 1,0 | 0,8 | 1,0 |
| FC, FCD | 300 | 00 -50- 00 | SOMT12 | - | - | - | - | 1,0 | 1,2 | 1,0 | 1,2 | 1,0 | 1,2 | |
| Hardened Steel | SOMT08 | 0,5 | 0,5 | 0,5 | 0,5 | - | - | 0,5 | 0,5 | 0,5 | 0,5 | |||
| H | ACK300 | 40 -80- 100 | SOMT12 | - | - | - | - | 0,6 | 0,8 | 0,6 | 0,8 | 0,6 | 0,8 |
The above recommended cutting conditions may require adjustment according to machine rigidity and work rigidity. The above figures are guidelines for use with the BT50 machine tool. The above conditions assume a tool overhang length of L/D=3 (i.e. overhang length is 3 times tool diameter) or less. When tool overhang is more than L/D=3 and less or equal L/D=5, settings should be adjusted to approximately 70% to 80% of those indicated in the above cutting conditions (i.e. ap and fz). When tool overhang is more than L/D=5 and less or equal L/D=8, settings should be adjusted to approximately 50% to 60% of those indicated in the above cutting conditions (i.e. ap and fz).