Merit M-9-2.5 Extra-Shank-Length Cartridge and Spiral Roll Mandrel, 1/8' Pilot Diameter x 1' Pilot Length, 4' Overall Length, 1/4' Shank Diameter x 2-1/2' Shank Length 1/8 Pilot Diameter x 1 Pilot Length 4 Overall Length St. Gobain Abrasives 08834180096

1 Customer reviews


The M-9-2. extra-shank-length mandrel securely mounts cartridge and spiral abrasive rolls, also called tapered cartridge rolls, onto a grinder that accepts a /"-diameter shank. The mandrel has an extended shank and " overall length for hard-to-reach applications. It fits cartridges and spiral rolls with a /"-diameter center. 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 /"-diameter shank that inserts into a grinder's chuck.

Pilot diameter/"
Pilot length"
Shank diameter/"
Shank length2-/2"
Overall length"

Abrasives manufactures abrasives for the deburring and finishing industries. , founded in 9 and headquartered in Cleveland, OH, meets International Organization for Standardization (ISO) standards 9000 and 00.

Customer reviews(1)

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October 2, 2018
I purchased a few kits from Harbor freight that included a number of sanding barrels and a couple of these type mandrels to use them. The tip on the harbor freight mandrels would break after less than 5 minutes, without fail. I ended up buying this mandrel as a replacement to see if it would be any better, and it definitely was! Lasted several hours of abuse before it finally gave in and broke the tip as well. Would highly suggest purchasing if using to port a head or whatever.