MTH-UN (internal)
Helical Thread Milling Inserts for American Full Profile Internal Threading. Intended for General Applications(+)
| Designation | TPI | INSL | W1 | S1 | THID | TP | Grade Click on Grade No. for Cutting Speed | |
|---|---|---|---|---|---|---|---|---|
| MTH 23 I 32 UN | 32.0 | 27.00 | 8.00 | 3.50 | =>1′ | 0.794 | IC908 | |
| MTH 23 I 24 UN | 24.0 | 27.00 | 8.00 | 3.50 | =>1′ | 1.058 | IC908 | |
| MTH 23 I 20 UN | 20.0 | 27.00 | 8.00 | 3.50 | =>1′ | 1.270 | IC908 | |
| MTH 23 I 18 UN | 18.0 | 27.00 | 8.00 | 3.50 | =>1_1/16′ | 1.411 | IC908 | |
| MTH 23 I 16 UN | 16.0 | 27.00 | 8.00 | 3.50 | =>1_1/16′ | 1.588 | IC908 | |
| MTH 23 I 14 UN | 14.0 | 27.00 | 8.00 | 3.50 | =>1_1/8′ | 1.814 | IC908 | |
| MTH 23 I 12 UN | 12.0 | 27.00 | 8.00 | 3.50 | =>1_1/8′ | 2.117 | IC908 | |
| MTH 23 I 10 UN | 10.0 | 27.00 | 8.00 | 3.50 | =>1_1/8′ | 2.540 | IC908 | |
| MTH 23 I 8 UN | 8.0 | 27.00 | 8.00 | 3.50 | =>1_3/16′ | 3.175 | IC908 | |
| MTH 23 I 7 UN | 7.0 | 27.00 | 8.00 | 3.50 | =>1_1/4′ | 3.629 | IC908 | |
| MTH 32 I 20 UN | 20.0 | 32.00 | 9.00 | 4.00 | =>1_3/8′ | 1.270 | IC908 | |
| MTH 32 I 18 UN | 18.0 | 32.00 | 9.00 | 4.00 | =>1_3/8′ | 1.411 | IC908 | |
| MTH 32 I 16 UN | 16.0 | 32.00 | 9.00 | 4.00 | =>1_3/8′ | 1.588 | IC908 | |
| MTH 32 I 12 UN | 12.0 | 32.00 | 9.00 | 4.00 | =>1_7/16′ | 2.117 | IC908 | |
| MTH 32 I 8 UN | 8.0 | 32.00 | 9.00 | 4.00 | =>1_1/2′ | 3.175 | IC908 | |
| MTH 32 I 6 UN | 6.0 | 32.00 | 9.00 | 4.00 | =>1_5/8′ | 4.233 | IC908 | |
| MTH 32 I 5 UN | 5.0 | 32.00 | 9.00 | 4.00 | =>1_3/4′ | 5.080 | IC908 | |
| MTH 45 I 16 UN | 16.0 | 37.00 | 11.90 | 5.00 | =>2′ | 1.588 | IC908 | |
| MTH 45 I 12 UN | 12.0 | 37.00 | 11.90 | 5.00 | =>2′ | 2.117 | IC908 | |
| MTH 45 I 8 UN | 8.0 | 37.00 | 11.90 | 5.00 | =>2_1/4′ | 3.175 | IC908 | |
| MTH 45 I 6 UN | 6.0 | 37.00 | 11.90 | 5.00 | =>2_1/4′ | 4.233 | IC908 | |
| MTH 45 I 4.5 UN | 4.5 | 37.00 | 11.90 | 5.00 | =>2_1/4′ | 5.644 | IC908 | |
| MTH 45 I 4 UN | 4.0 | 37.00 | 11.90 | 5.00 | =>2_1/2′ | 6.350 | IC908 | |
| MTH 63 I 16 UN | 16.0 | 38.00 | 11.90 | 5.00 | =>2_3/4′ | 1.588 | IC908 | |
| MTH 63 I 12 UN | 12.0 | 38.00 | 11.90 | 5.00 | =>2_3/4′ | 2.117 | IC908 | |
| MTH 63 I 8 UN | 8.0 | 38.00 | 11.90 | 5.00 | =>3′ | 3.175 | IC908 | |
| MTH 63 I 6UN | 6.0 | 38.00 | 11.90 | 5.00 | =>3′ | 4.233 | IC908 | |
| MTH 63 I 4 UN | 4.0 | 38.00 | 11.90 | 5.00 | =>3′ | 6.350 | IC908 |