Review on Cubitron 982C Precision Ceramic Diameter by Ralph Foster

Cuts very quickly UPDATE: Now after extensive use I have to downgrade my rating from 5 to 2 stars. All Cubitron abrasives cut very quickly and do not clog like others. This style screws directly into the spindle of the 5/8-11 grinder. Unfortunately they have a hub with 6 pointed tabs that pierce the disc but don't crimp completely. Any vibration of the disc in just a few minutes of use will cause it to break and the disc will simply spin freely. Firmly squeezing these tabs together with a punch and hammer improves the situation, but they still break in too short a time. Where normally one disk should be enough for multiple jobs, this gap forces us to use 2-3 disks for each job. At $3.25 per drive, the failure rate of THESE drives makes them extremely expensive to use! I will NOT order the style again. 3M offers the same wheels with a standard 7/8" bore for use with a standard grind nut (the best option). abrasive material.) This deformation causes vibrations that aggravate the crack. Simply TERRIBLE design!