"Aluminum oxide depressed center cut-off wheels for metal cutting and grinding. 4 1/2in. x 1/4in. x 7/8in. 13,300 max. RPM. Wheel Diameter (in.): 4 1/2, Wheel Thickness (in.): 1/4, Arbor Size (in.): 7/8, Max. RPM: 13,300, Wheels (qty.): 5, Wheel Type: Type 27, Recommended Use: Metal"
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