DCGT inserts
55° rhombic turning insert. We make 3 DCGT sizes, from DCGT070204 to DCGT11T308. Grade, coating and chipbreaker are matched to your material and operation.
What DCGT 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 |
|---|---|---|
| D | Shape | 55° rhombic |
| C | Clearance angle | 7° (positive insert) |
| G | Tolerance class | Class G |
| T | Hole and chipbreaker | Hole countersunk on one side, chipbreaker on one face |
Where DCGT inserts are used
The 55° corner reaches into profiles, tapers and recesses that an 80° corner cannot, but the corner is weaker; use it where the contour needs that clearance.
DCGT is a positive (7° clearance) 55° rhombic turning insert. It has a countersunk hole for a clamping screw. The chipbreaker is on one face only. Positive inserts cut with lower forces, which suits finishing, small diameters, internal turning and less rigid setups. Tolerance class G is tighter than class M; inserts in this class are often ground, for more precise dimensions.
Choose the size for your depth of cut, the corner radius for the feed and finish, and a holder made for DCGT inserts of that size.
Questions
- What does DCGT mean?
- It is an ISO 1832 code. D = Shape: 55° rhombic; C = Clearance angle: 7° (positive insert); G = Tolerance class: Class G; T = Hole and chipbreaker: Hole countersunk on one side, chipbreaker on one face.
- Which DCGT sizes do you make?
- 3 sizes, from DCGT070204 to DCGT11T308, with inscribed circles from 6.35 to 9.525 mm. Grade, coating and chipbreaker are confirmed with each quotation.
- How do I read DCGT11T308?
- DCGT = format; 11 = Cutting edge length code (about 11 mm); T3 = Thickness (3.97 mm); 08 = Corner (0.8 mm nominal).
Related formats
Guides: CNMG vs WNMG vs DNMG vs TNMG · ISO material groups · Inserts for stainless steel
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