Turning Inserts – Miscellaneous (MSC) — Full Specifications
KNUX — Negative Turning Insert
Turning steel neg medium "P25", N11 chipbreaker.
Example designation: KNUX 160405ER-N11, 12° clearance angle.
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| Designation | Chipbreaker | Material No. | Available |
|---|---|---|---|
| KNUX 160405-EL-N11 GTCP125 | …-N11 | MM11750418 | ● |
| KNUX 160405-ER-N11 GTCP125 | …-N11 | MM11750419 | ● |
| KNUX 160410-EL-N11 GTCP125 | …-N11 | MM12030582 | ● |
| KNUX 160410-EL-N11 GTCP125 | …-N11 | MM12030589 | ● |
| KNUX 160405-ER-N11 LP2002 | …-N11 | MM11246906 | ● |
| KNUX 160405-EL-N11 LP2002 | …-N11 | MM11246899 | ● |
| KNUX 160405-ER-N11 LP4002 | …-N11 | MM11247268 | ● |
| KNUX 160405-EL-N11 LP4002 | …-N11 | MM11247265 | ● |
Cutting data — general cutting parameters by workpiece material
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| Group | Type / alloy | Hardness HB | GTCP115 vc [m/min] | GTCP125 vc [m/min] | LP2002 vc [m/min] | LP4002 vc [m/min] |
|---|---|---|---|---|---|---|
| P | Non-alloyed steel 0–0.45% C | 150–250 | 220–400 | 170–240 | 170–200 | 170–190 |
| P | Low-alloyed steel | 250–300 | 200–320 | 100–190 | 90–160 | 90–150 |
| P | High-alloyed steel | 200 | 180–320 | 130–210 | 130–170 | 120–200 |
| P | Corrosion-resistant steel | 200 | 200–320 | 130–210 | 130–180 | 140–180 |
| M | Ferritic stainless | 200 | 220–320 | 140–210 | 140–180 | 140–200 |
| M | Austenitic stainless | 180 | – | 100–210 | 100–170 | 110–190 |
| M | Duplex stainless | 230–260 | – | – | – | 80–150 |
| M | Martensitic stainless | 330 | – | 70–100 | – | 55–75 |
| K | Grey cast iron | 180 | 140–370 | 130–210 | – | – |
| K | Spheroidal cast iron | 160 | 190–430 | 120–240 | – | – |
| K | Malleable/tempered iron | 130 | 180–520 | 150–250 | – | – |
Recommended cutting depth: consistent for all grades; GTCP115 also suited to inconsistent cutting depth; none recommended for interrupted cuts.