ITEM NAME:1/4 inch Pneumatic Die Grinder Air Die Grinder Grinding Mill Engraving Tool C4U5 1/4 inch Pneumatic Die Grinder Air Die Grinder Grinding Mill Engraving Tool C4U5 Brand new Length(approx.): 152mm Collet size: 1/4 inch (6mm) Air Tool Style: Air Die Grinder Type: Straight Die Grinder AIr Consumption: 4 CFM Air pressure: 90 PSI Air inlet: 1/4 inch Free speed: 22000 rpm Exhaust: Rear High quality and durable. A perfect aftermarket replacement. Used for polishing and grinding various metal moulds. Color: blue + black material: metal Product size: 15.2*3.4*3.4cm Package Included: 1 x Pneumatic Engraving Polished Machine 2 x Small Wrench 1 x 3mm Chuck 1 x 6mm Chuck 1 x User Manual Note: Installation instruction is NOT included, and professional installation is highly recommended..Air Tool Style: Air Die Grinder. Type: Straight Die Grinder. 1 x Pneumatic Engraving Polished Machine. Exhaust: Rear. AIr Consumption: 4 CFM. Color: blue + black. 1 x User Manual.