For sale are these 3 pcs of a KENNAMETAL NTC3R8E Carbide Threading Inserts 1182177 Grade KC730, 2 pcs (8 TPI, or finer if the root radii is good with these inserts)
MSC has these below to compare for 30.0 ea, but you have to buy 5. , BUT a different grade as MSC has the KC5010 grade listed;
Threading Insert: NTC3R8E KC5010, Carbide
TiAlN Finish, 8 TPI, Series Top Notch
MSC# 62200431
Mfr# 1765641
Big Book Page# 913
Specifications
| Insert Style | NTC |
| Insert Material | Carbide |
| Manufacturer Grade | |
| Material Grade | |
| Thread Standard | UN |
| Insert Hand | Right Hand |
| External Pitch | 8 TPI |
| Included Angle | 60 |
| Series | Top Notch |
| Coating Process | PVD |
| Tip to Top of Insert (Decimal Inch) | 0.1071 |
| Tip to Top of Insert (mm) | 2.72 |
| Corner Radius (Decimal Inch) | 0.0161 |
| Corner Radius (mm) | 0.41 |
| Thickness (mm) | 4.95 |
| Insert Size | 3 |
| Thickness (Decimal Inch - 4 Decimals) | 0.1949 |
| Finish Coating | TiAlN |
| Thread Type | External |
| UNSPSC Code | 23291804 |
| Country of Origin | UNITED STATES |