Description
- 4-Jaw Lathe Chuck
- 4″ (100 mm) diameter
- Each jaw is independently adjustable and reversible
- Plain back mounting
- High quality steel, hardened and ground
This 4 inch 4-jaw chuck requires an adapter for the mini lathe, but it fits the standard backplate for 9×20 lathes (with the addition of three more bolt holes).
It includes a chuck key.
This chuck has a 0.98″ (25 mm) through hole. The chuck can hold work up to 3.94″ (100 mm) in diameter.
| Rated Capacity, Inside Jaws | 0.24″ – 1.77″ (6.0 mm – 45.0 mm) |
| Rated Capacity, Outside Jaws | 1.57″ – 3.94″ (40.0 mm – 100.0 mm) |
| Practical Maximum Capacity, Inside Jaws | 2.75″ (69.8 mm) |
| Practical Maximum Capacity, Outside Jaws | 5.00″ (127.0 mm) |
| Diameter, Overall | 3.94″ (100.0 mm) |
| Registration Recess Diameter | 2.83″ (72.0 mm) |
| Registration Recess Depth | 0.14″ (3.5 mm) |
| Bolt Circle Diameter | 3.31″ (84.0 mm) |
| Center Hole Diameter | 0.98″ (25.0 mm) |
| Height | 2.13″ (54.0 mm) |
| Jaw Height Above Face | 0.83″ (21.0 mm) |
| Height with Jaws | 2.56″ (65.0 mm) |
| Number and Size of Bolts | 4 M8 |
| Chuck Key | 0.24″ (6.0 mm) |
| Chuck Designation | K72-100 |
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