Measures: A = 3" | B = 2" | C = 1-1/2" | 1-1/4" Arbor
CBN Flywheel Grinding Stones are designed for use only on Cast Iron flywheels. Their graphite aluminum core minimizes dressing and 1/8" thick CBN material will provide long life.
NOTE: Use with fresh flywheel grinding coolant for best results.