Description PEAK's Accessory Shaft is a unique and very useful accessory. It provides a place to mount items such as a light or profile plate in your work area, but not on your vise. Compatible with both PEAK's Pedestal Base and C-Clamp, the Accessory Shaft will accept any accessory designed to mount to a 3/8" diameter shaft(Accessories and Vises shown for illustration and are not included with the Accessory Shaft). Lifetime warranty against defects in material or workmanship