Rear exhaust directs air away from work. Complete with 1/4-Inch and 6mm collet. Features: Free speed: 24,000 rpm Air consumption: 5.25 CFM Air inlet thread: 1/4-Inch NPTF Minimum hose size: 3/8 in. Sound dBA pressure: 93 Length: 11.75 Weight: 2.1 lb.The item "Chicago Pneumatic 860ES Air Die Grinder" is in sale since Tuesday, May 14, 2013. This item is in the category "eBay Motors\Automotive Tools & Supplies\Air Tools\Air Grinders". The seller is "jbtool" and is located in Livonia, Michigan. This item can be shipped worldwide.