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The Merit M-9-2.5 extra-shank-length 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 has an extended shank and 4" overall length for hard-to-reach applications. It fits cartridges and spiral rolls with a 1/8"-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 1/4"-diameter shank that inserts into a grinder's chuck.
SpecificationsPilot diameter1/8"Pilot length1"Shank diameter1/4"Shank length2-1/2"Overall length4"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.
kris
2025-09-03 11:11:09
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.
Erving Mangum
2025-07-19 11:10:49
Cost is to much I can purchase a pack of disk and get two in that pack for same price
Ryan Paasch
2025-06-25 15:18:19
good mandrel roll. Would buy again
Robert J.
2025-04-13 14:37:29
Nice, simple tool, just the length I needed to get a bit deeper in the intake runner. Very simple, but effective.
Griffin's Woodworks
2024-12-24 13:19:13
Perfect for sanding cones and woodworking
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