6mm-50mm Dry Diamond Drill Core Bit M14 Drilling Porcelain Tile Hole Saw Cutter. 5/125mm Diamond Cutting Grinding Disc Wheel for Porcelain Tile Marble Saw Blade. Set1: 7pcs (6/8/10/25/35/50/65MM) drill bits, 1pc 10mm milling bit, 1pc 50mm chamfer bit, 1pc hex shank adapter.