Specification:Brand new Material: Metal Color: Chrome and Black Length(approx.): 153mm Collet size: 1/4" (6mm) Air Tool Style: Air Die Grinder Type: Straight Die Grinder Air Consumption: 4 CFM Air pressure: 90 PSI Air inlet: 1/4" Free speed: 25000rpm Exhaust: Rear High quality and durable. A perfect aftermarket replacement. Used for polishing and grinding various metal moulds.