Die Grinder, Manufacturer suggested retail price. $425.47 Features and Benefits: Rugged, energy-efficient 1/2 hp motor Built-in regulator matches speed to job Rear exhaust directs air away from work Square handle design for positive grip Applications: polishing, grinding, porting in hard to reach areas Free speed: 24000 rpm Collet Size 1/4" - 6mm Weight 2-1/10 lbs. - 0.9kg Length 11-3/4" - 298mm Avg. air consumption 5 CFM Air Inlet NPTF 1/4" Min. hose size 3/8" - 10mm Sound dba pressure 93 - 103 Manufacturer: Chicago Pneumatic 1 yr warranty on material and workmanship