Mark V Lab #56012 Metapol 4B3V Series Bench Top Grinder/Polisher with Single 10" Wheel. The Metapol 2B3 features: 3 Preset Speeds (200, 400 + 600 rpm) & Variable Speeds (50-1000 rpm) with CW & CCW Rotation and Time Controls. The 2B3V offers tough and rugged GRP (glass reinforced plastic) body with cast frame construction.along with water inlet and outlet for wheel lubrication. The Metapol utilizes 10" Aluminum Quick Change Wheels and comes with Splash Guard, Paper Holding Band and Cover. Extra Wheels and Paper Holding Rings are sold separately . 110/220V