This new 12-inch tabletop lap grinder is a small, portable grinder option that accepts any 12-inch diamond disk with magnetic backing. The 1/4-inch centering pin makes it fast and easy to center your disks on the grinder for smooth running operation and the Loc-Line water manifold is easy to connect your water source with a simple 1/4-inch push-to-connect adaptor. Rougher grit electroplated disks will have a thicker amount of nickel on them and can cause vibration in the grinder at higher RPMs. Be aware that rougher grits may have to be run at a lower RPM to reduce vibration due to the varying thickness of nickel. 1/3HP motor- 110V/60Hz Variable speed from 0–2000 RPM Solid hardened steel plate Pre-attached drain line Aluminum water manifold with 1/4-inch push-to-connect Discs are sold separately *Water Pump is sold separately. Shipping: This item does not qualify for free shipping and ships directly from the manufacturer in Idaho. Shipping will be billed separately.