Concord Blades CBGW01125SP 1-1/8 Inch Supreme Wet Stone Diamond Core Bit 3.0" Segment Width, 10 mm Segment Height, 5/8"-11 Arbor Can be used Wet Only Cleanly Cuts Granite, Marble, Porcelain, Artificialand Natural Stoneand More Max RPM 12,000-use wet only 3-1/4-inch tube length