4×40 UNC S20 Dies for 1/4″ Cov
3 in stock
High speed steel uncoated chaser die set. Suitable for all Coventry die heads and derivatives (OSG, Rubometric etc). Manufactured to original Alfred Herbert specifications.
| Thread Form | UNC |
|---|---|
| Die Dia. | 6mm – 1/4" |
| Size | 4 |
| Pitch | 40 |
| Direction | Right Hand |
| Die Type | S20 |
