164111 4in MK-250GX Continuous Dry/Wet Porcelain Blade by MK 4″ MK-250GX Continuous Dry/Wet Porcelain Blade Dry/Wet cutting, continuous rim diamond blade Clean chip-free cutting on porcelain and granite. 7/8″-5/8″ arbor 7mm rim height . Posted in Dry Diamond Blades For Porcelain & Granite, Tile & Stone Diamond Blades, Tile & Stone Tools tagged with MK