Craftsman Table Saw Handwheel Handle 113.298240 and many others
This has a 1/2" bore and set screw. Overall, it is 4 5/8" in diameter.
NOTE: There are two versions of this hand wheel. The version shown and for sale in this listing. A second version with a thinner handhold without the very bulbous end. See our other listing for this other version. Make sure you are getting the oner your need.