12 Inch Abrasive Cutting Blade Wheel for Cutting Masonry / Concrete (Type 1A or ISO 41)Recommended for cutting all types of masonry, concrete, concrete block, limestone, sandstone and tile.* Constructed of resinoid bonded silicon carbide for increased durability * Metal-reinforced arbor provides added strength Specs:Diameter: 12″Arbor Size: 1″Thickness: 1/8″ (3.66mm)Tool Type: High Speed SawMax RPM: 6300Vermont American28007 05-28019 28019