metabo® Cut-Off Wheel, Type 1, Series: Original Slicer, 6 in Wheel Dia, 0.04 in Wheel Thickness, 7/8 in Center Hole, 60 Grit, Medium Grade, Aluminum Oxide Abrasive, 10200 rpm Maximum, Resin Bond, Applicable Materials: Cast Iron, Concrete, Ductile Iron, Masonry Materials, Non-Ferrous Metals, Brass, Bronze, Plastic and Stone, Wheel Type Number: Type 1, Wheel Hardness: TZ, OSHA Approved, ANSI B7.1 Specifications Met