For sale is a Vertical Feed Hand-Wheel from a Boyar Schultz Model 612 Hand Feed Surface Grinder. 6" Diameter. 1-3/4" Deep, not including the crank. 7/16" Diameter shaft bore with (2) set-screws. (50) Indented graduations around the handle's periphery. This handle shows no evidence of having been cracked, bent or welded.