For sale is a Ingersoll Rand Size 99V60P109 Heavy Duty Pneumatic Grinder. 6,000 RPM. Uses 90 PSIG Air pressure. 5-3/4" Diameter cupped grinding wheel included. NOTE: This Ingersoll Rand Air Grinder is being sold FOR PARTS ONLY. The spindle turns by hand, but becomes very tight over approximately 60 degrees of each turn.