The FootPro Grinder attachments come in two sizes. 2'' x 36'' and the 2'' x 48'' Both the 2'' x 36'' and the 2'' x 48'' Grinder Attachments use an 8" (200mm) contact wheel. The 8" wheel produces a significantly higher belt speed than most grinder attachments with smaller drive wheels (the 10" expander wheel produces an even faster belt speed). These grinders fit any 1/2 hp or larger grinder with a shaft at least 2-1/2" long and 5/8" in diameter. A wide range of belts fit these units. Compact and versatile for use, thanks to the easy belt-change feature. A Baldor 1/2 hp or 3/4 hp grinder 3600 rpm motor is recommended. Made in the USA. Note: These are right-hand mounts shown; left-hand mounts are available. Please contact us if interested in a left-hand mount. **Baldor MOTORS are available but are NOT INCLUDED with these Belt Grinder Attachments** (20 years later, Doc says his 3/4 HP Baldor Motor works like the day he got it, "I was younger, and it was a big expense for me then, but I've been grateful for it every day since." IMPORTANT: If you purchase a grinder when it is out of stock, yours will ship upon receipt of our next order, which ranges from 2-8 weeks with this distributor. Orders containing pre-ordered items are held and shipped together. Consider ordering 'pre-ordered' items separately if you want the other items in your cart shipped immediately. Call with Any Questions.