Fitment： Application - Used on ferrous metals, non-ferrous metals, wood and fiberglass. Removes small welds and imperfections along with light stock removal, blending and finishing. Generally lasts twice as long as an aluminum oxide disc when used in the proper application. Use in place of a grinding wheel on a right angle grinder. Description: Material: Zirconia Color: Blue Size: 4.5" x 7/8" Grade:36 Grit Quantity: Total 25PCS Arbor Hole Size: 7/8 inch Diameter Size: 4.5 inch Bond: Resin Over Resin Backing Material: Vulcanized Fiber Advanced grain formulas designed to maximize cut rate on metals. .
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