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| This chuck is used, & 2 inches in diameter, & has a 1/2" X 20 mounting hole. This is marked Buck Tool Co Kalamazoo #245. This is a two piece chuck made of two metals, steel & aluminum. The jaws are curved & look like they are designed for holding round stock. There is no key. It has a square hole for the key. The key hole appears to be 5/32. |
