The induction motor provides superior power for industrial grinding applications. Grinder has a rugged cast iron base and rests made of precision machined aluminum with rear exhaust ports in wheel guards and 12-1/2" distance between wheelsfor larger and longer grinding applications. Specs: 4.2 amps, 3/4HP, 3,600 rpm no load speed, 8" wheel diameter, 5/8" spindle diameter, adjustable tool resets, length 16", weight 39.5 lbs. Includes: 36 & 60 grit wheel, eye shields, spark deflectors, tool rests and adjustment wrench.