For Autoblock, Howa, Kitagawa, Matsumoto, Shunk.
| Manufacturer Part Number | 491672 |
| Jaw Type | Square |
| Material | Steel |
| Jaw Interface Type | 1.5X60 Degree |
| Maximum Compatible Chuck Diameter (Inch) | 15" |
| Minimum Compatible Chuck Diameter (Inch) | 15" |
| Minimum Compatible Chuck Diameter (mm) | 381mm |
| Overall Height (mm) | 100mm |
| Groove Width (mm) | 25.5mm |
| Number of Jaws | 1 |
| Model Number | HKM.38.12 |
| Fastener Size (mm) | 21mm |
| Overall Length (mm) | 135mm |
| Product Type | Soft Lathe Chuck Jaw |