Driveshaft Adapter 3/8" to 1/2"
Driveshaft Adapter 3/8" to 1/2":
Lengthen and enlarge the standard 3/8" driveshaft to fit a pulley with a 1/2" bore to your mill with this adapter. It also gives you a little more flexibility in positioning the pulley with respect to the distance from the side of the mill. An allen wrench is included to tighten the socket set screws.