How often do I reface my Calibrade® wheels?
Calibrade® wheels are diamond trued before leaving the factory. Unless the wheels show indications of being out of round, crowned or clogged with abraded material, they can be used continuously without further refacing. Taber recommends refacing previously used Calibrade® wheels whenever starting a new test, changing to different test material, and whenever there is a tendency for the working surface of the wheels to pick up excess materials.
