Toolsmart Variable Speed Wet Polisher 4" Polishing 18 Pad Diamond 1 3/8" / 35mm Core Bit Hole Saw Cup Wheel ONE YEAR WARRANTY Wet Variable Speed Polisher (HAS GFCI Breaker, 800W, 500-4500 RPM). 17 Pieces of 4" (3mm Thick) Polishing Pad for granite marble concrete. 3 X Grit 50, 2 X Grit 100 200 400 800 1500 3000 10000Buff. 1 Pcs of 4" Backer .1 Piece of 4" Diamond Turbo Grinding Cup Wheel. 1 Piece of Diamond 35mm / 1 3/8" Core bit / Hole Saw.