Recommended Inserts and Cutting Conditions by Work Materials
(Applied to continuous turning with negative insert)
Mild steels (1010,
5120, etc.) Hardness<HB150 | Application | Precision
finishing | Finishing | Medium cutting |
Medium to heavy cutting | Heavy cutting |
| Cutting speed (SFM) | 330~600~830 |
330~600~830 | 330~600~830 |
330~500~560 | 330~400~460 |
| Depth of cut (in) | .002~.012~.02 |
.012~.04~.06 | .04~.12~.2 |
.12~.16~.24 | .16~.24~.47 |
| Feed (in/rev) | .0012~.004~.006 |
.003~.006~.008 | .008~.012~.02 |
.012~.016~.024 | .024~.028~.047 |
| Recommended Insert | |
| Rhombic
(80°) |  |
NS530 |  |
DS530 |  |
T7025 |  |
T7025 | |
T7025 |
| CNGG | CNMG |
CNMG | CNMG | CNMG |
| 431-01 | 432-TS |
432-TM | 543-TH | 644-TH |
| Rhombic (55°) |  |
NS530 |  |
NS530 |  |
T7025 | | |
| DNGG | DNMG | DNMG |
| 431-01 | 431-TS |
432-TM |
| Square (90°) |
 | NS530 |
 | NS530 |
 | T7025 |
 | T7025 |
| T7025 |
| SNGG | SNMG | SNMG |
SNMG | SNMG |
| 431-01 |
431-TS | 432-TM | 543-TH |
644-TH |
| Triangular (60°) |
 | NS530 |
 | NS530 |
 | T7025 |
| |
| TNGG |
TNMG | TNMG |
| 331-01 |
331-TS | 332-TM |
| Rhombic (35°) |  |
NS530 |  |
NS530 |  |
T7025 | | |
| VNGG | VNMG | VNMG |
| 331-01 | 331-TS |
332-TM |
| Trigon (80°) |
 | NS530 |
 | NS530 |
 | T7025 |
| |
| WNGG |
WNMG | WNMG |
| 431-01 |
431-TS | 432-TM |