Lightweight Dynastraight includes 13061 Multi-Purpose Arbor for mounting optional abrasive wheels 1/2" to 3" wide (1/2" increments) with 5/8" or 1" center hole. 3,200 RPM, .4 hp. Ideal for 1/2" to 3" wide abrasive impregnated non-woven nylon wheels. Achieves smooth finishes on stainless steel and composites used in kitchen and bath industries. Mount Abrasive Belts with optional 94507 Dynacushion Pneumatic Wheel (3-1/4" dia. x 3" wide x 5/8" bore).