The 555 PRO Grinder Polisher 22”, single phase 230V planetary grinder has been designed for the middle size grinder market and has some new features not found on other grinders in its class. With a completely new, bullet proof drive system, a 10 minute breakdown, and disassembly, the 555 Pro Grinder design allows it to be moved to basements and other hard to reach areas. This high production, mid-level machine is offered with a 7.37 horsepower motor and variable speed, 600 lbs of productivity.