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The Merit M-21 mandrel securely mounts cartridge and spiral abrasive rolls, also called tapered cartridge rolls, onto a grinder that accepts a 1/4"-diameter shank. The mandrel fits cartridges and spiral rolls with a 1/4"-diameter center hole and is recommended for 1-1/2"-long rolls for maximum performance. The one-piece mandrel body is made of steel for strength and extended tool life. The mandrel has an unthreaded end that accepts a roll and holds it in place with a cone-shaped segment, and it has a 1/4"-diameter shank that inserts into a grinder's chuck.
SpecificationsPilot Diameter1/4"Pilot Length1"Shank Diameter1/4"Shank Length1-1/4"Overall Length3"Merit Abrasives manufactures abrasives for the deburring and finishing industries. Merit, founded in 1945 and headquartered in Cleveland, OH, meets International Organization for Standardization (ISO) standards 9000 and 14001.
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