Abrasive cut-off wheel, abrasive wheel type Type 1, abrasive wheel diameter 7 in, thickness 0.045 in, arbor hole size 7/8 in, abrasive material aluminum oxide, abrasive grit 60, MAX*. RPM 8,700 RPM, series a60t, diamond knockout no, application ferrous metal, stainless. Replace wheels less often with temper point grains that are built tougher to maintain razor sharpness for up to 50% longer life. Get a longer lasting cutting edge that resists wear-and-tear with enhanced adhesion between the coat