Constructed with rigid cast-aluminum housings and backing plate. 12" model features a fully adjustable work table. Hinged front cover is held by a single wing nut, allowing easy access to change or reverse the abrasive wheel. Full-radius water supply provides effective abrasive surface cleaning, while removable clean-out plugs provide access for general cleaning. 10" model has the same general features; however, it offers a 2-position work table.