Weiler® Tiger® Zirc 6 in type 11 flaring Cup Wheel are designed to deliver exceptional durability and a fast cut rate for performance you can count on. Our advanced bond technology provide long product life while sharp and durable zirconia abrasive grain cut smoothly and hold up in the most challenging foundry cleaning room application. The type 11 flared shape feature a flat grinding surface, making them ideal for heavy metal removal, grinding, transitioning, rough beveling and removing crack and flaw. A 1 in rim provide a medium grinding zone for maximum material removal in targeted area and a 5/8-11 UNC arbor allow for quick spin-on, spin-off product changeover. Specifically designed with performance and versatility in mind, Tiger® Zirc cup rock are designed for use on medium to high power pneumatic and high frequency electric grinder. These abrasive are ideal for a wide range of cast metal. Tiger® Zirc Grinding/Cup Wheel, Fast Cut Long Life High Performance, 6 in Wheel Diameter, 2 in Wheel, 16 Grit, ZA16-Q Grade, Wheel Type Number: Type 11, 6000 RPM Maximum, Wheel Hardness: Q, Resin Bond, Applicable Materials: Carbon Steel/Cast Iron/Ductile Iron/Gray Iron/High Nickel Alloy/Stainless Steel/White Iron, 5/8-11 UNC Center Hole Thread, Brown Wheel, Flared Wheel, Specifications Met: ANSI B7.1