Weiler Tiger® Zirc 6 in type 11 flaring cup wheels are designed to deliver exceptional durability and a fast cut-rate for performance you can count on. Our advanced bond technology provides long product life while sharp and durable zirconia abrasive grains cut smoothly and hold up in the most challenging foundry cleaning room applications. The type 11 flared shape features a flat grinding surface, making them ideal for heavy metal removal, grinding, transitioning, rough beveling, and removing cracks and flaws. A wide 1-1/2 in rim provides a large grinding zone to minimize grind time and a 5/8-11 arbor allows for quick spin-on, spin-off product changeover. Specifically designed with performance and versatility in mind, Tiger® Zirc cup rocks are designed for use on medium to high power pneumatic and high frequency electric grinders. These abrasives are ideal for a wide range of cast metals. Tiger® Zirc, a high performance abrasive solution for foundries. Tiger® Zirc Flaring Cup Wheel, 6 x 4-3/4 in Wheel Diameter, 2 in Wheel, 16 Grit, ZA16R Grade, Zirconia Alumina Abrasive, Wheel Type Number: Type 11, 6000 RPM Maximum, Wheel Hardness: R, Synthetic Resin Bond, Applicable Materials: Cast Iron, Cast Steel, Ductile Iron, Gray Iron, High Nickel Alloys, Stainless Steel and White Iron, 5/8-11 UNC Center Hole Thread, Brown Wheel, 1-1/2 in Face Width, Cup Wheel, Specifications Met: ANSI B7.1