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【Materials】Made of Corundum sand and Metal. durable and wear resistance
【Feature】 Have cone shape, cylinder shape and T shape, meets your different grinding needs
【Shank】6mm (1/4 inch) hex shank fit for die grinder, drill and other rotary tool
【Application】 Used for aluminum, agate, steel, alloy, metal and non metal grinding,polishing,sharpening
【Package】8 Pieces 1/4'' hex shank assorted shape corundum sand mounted grinding stone