Page 855 - Ceratizit Catalog

TC - thread turning
C250
Recommended values for depth and number of cuts

Partial profile

60° external and internal threads

TC16-2EI-AG60
Threading insert
TC16-1EI-A60 TC16-2EI-G60 TC16-3EI-N60
Pitch [mm] 0,5 0,75 1,0 1,25 1,5 1,75 2,0 2,5 3,0 1,75 2,0 2,5 3,0 3,5 4,0 4,5 5,0

4 4 5 6 7 8 9 10 12 8 9 10 12 12 13 14 14
Number of cuts ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓
6 7 9 10 11 12 14 15 19 12 14 15 20 20 21 22 22
Thread profile height
0,33 0,52 0,71 0,90 1,09 1,28 1,47 1,84 2,22 1,23 1,42 1,79 2,17 2,45 2,83 3,21 3,59
external
Thread profile height
0,27 0,44 0,60 0,76 0,92 1,09 1,25 1,57 1,90 1,04 1,20 1,52 1,85 2,07 2,4 2,72 3,05
internal
These are recommended values for steel machining

55° external threads

TC16-2EI-AG55

TC16-1EI-A55
Pitch [passes/inch] 28 26 24 20 19 18 16 14 12 11 10 9 8

5 5 6 6 7 7 8 9 10 10 11 12 12
Number of cuts ↓ ↓ - ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓
8 8 9 9 12 12 14 14 16 16 18 20 20

Thread profile height 0,66 0,72 0,79 0,95 1,01 1,07 1,21 1,39 1,63 1,79 1,97 2,20 2,48

55° internal threads

Threading insert TC16-2EI-G55 TC16-3EI-N55

Pitch [passes/inch] 14 12 11 10 9 8 7 6 5

8 9 10 11 12 12 12 12 14
Number of cuts ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓
12 14 15 18 20 20 20 20 22 Parting and grooving / Technical information

Thread profile height 1,22 1,46 1,56 1,80 2,03 2,31 2,40 2,89 3,56

These are recommended values for steel machining