Product Description Specifications Documentation P7 Shaft, 1/2in diameter x 3in long made from 4142 hardened alloy.Shaft is supplied as a blank with no machining and can be used as is or machined as needed.This shaft will work with any P7S or P7H gearbox. Diameter: 1/2 in Length (From Face): 3 in Keyway: None End Tap: None Material: 4142 Hardened Alloy Click arrow in center of image to load and interact with it Your browser does not support iframes.