RNMG inserts
Round turning insert. We make 3 RNMG sizes, from RNMG120400 to RNMG250900. Grade, coating and chipbreaker are matched to your material and operation.
What RNMG means
The first four letters of an ISO 1832 designation give the shape, the clearance angle, the tolerance class, and the hole and chipbreaker.
| Code | Feature | Meaning |
|---|---|---|
| R | Shape | Round |
| N | Clearance angle | 0° (negative insert) |
| M | Tolerance class | Class M |
| G | Hole and chipbreaker | Cylindrical hole, chipbreaker on both faces |
Where RNMG inserts are used
A round insert has the strongest edge and no single corner. It is used for profiling and roughing, and can be turned in the holder to bring fresh sections of the edge into the cut.
RNMG is a negative round turning insert. It has a cylindrical hole. It has a chipbreaker on both faces. It can be turned over to use the circular cutting edge on the other face. Negative inserts have a strong edge and are used from finishing to roughing on rigid machines.
Choose the diameter for your depth of cut and profile, and a holder made for RNMG inserts of that size.
Questions
- What does RNMG mean?
- It is an ISO 1832 code. R = Shape: Round; N = Clearance angle: 0° (negative insert); M = Tolerance class: Class M; G = Hole and chipbreaker: Cylindrical hole, chipbreaker on both faces.
- Which RNMG sizes do you make?
- 3 sizes, from RNMG120400 to RNMG250900, with diameters from 12.7 to 25.4 mm. Grade, coating and chipbreaker are confirmed with each quotation.
- How do I read RNMG120400?
- RNMG = format; 12 = Diameter code (about 12 mm); 04 = Thickness (4.76 mm); 00 = Corner (round insert, inch-based diameter).
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