👷[PERFORMANCE]: The abrasive grinding wheel is made for use with ¼ in., mandrels. The angle grinding wheel can be safely used on power grinders. PACK OF 10) 100mm Grinding Discs (4) metal grinder discs 100 x 6mm | eBay Its measures 4-1/2 in., in diameter, 1/4 in. 👷[SIZE& QUANTITY]: A pack of 25 pieces grinding wheels. Bullard Abrasives RapidGRIND Grinding Discs, 4-1/2 x 7/8 5325 APPLICATIONS]: The grinding wheel is perfect for cleaning, Rust removal, grinding, dusting, deburring, polishing, stripping resin Can be effectively used on metal for steel, stainless steel, aluminum,copper,etc. 👷[EXTREME DURABILITY AND VALUE]: LUCKUT metal grinding wheels are made of high performance aluminum oxide grain for long life and aggressive material removal built. The wheel runs at a speed of 13,300 RPM. Aluminum Oxide Wheels 10 Pack Grinding Dic 4-1/2'' X 1/4'' X 7/8'' Grinder Wheel Center Aggressive Grinding Wheels 👷[COMPATIBILITY]: This grinding wheel is specially designed to deliver superior performance on ferrous and non-ferrous metals.