Description
Why TDJ 3 Parting and Grooving Insert 3 mm Is the Default Width
Parting is a balance between two failure modes. Too narrow and the blade deflects, wanders and breaks. Too wide and you waste material on every cut and pull more power than the machine wants to give. The 3 mm blade sits at the point where most shops find that balance for medium diameter bar.
If you are parting 20 mm to 50 mm diameter bar in steel or stainless, the TDJ 3 Insert will handle it. Below that range a TDJ 2 saves material. Above it, or where the reach is long, the extra rigidity of a TDXU 4 is worth the wider kerf.
Applications
- General parting off on CNC and conventional lathes
- External grooving where a 3 mm width is required
- Undercuts and thread relief grooves
- Wider grooves cut as a series of plunges with a finishing traverse pass
Specifications of TDJ 3 Insert
| Attribute | Value |
|---|---|
| Designation | TDJ 3 |
| Cutting width | 3 mm |
| Construction | Double ended, two cutting edges per insert |
| Application | Parting off, external grooving, undercuts |
| Holder type | TDJ / TDC style parting blade holders |
| ISO material groups | P steel, M stainless steel, K cast iron |
