Product Description The CP860 Series, a 1/4 Inch (6.35 mm) capacity die grinder with collet, features a compact or extended shaft to accommodate your most demanding accesses in general maintenance applications to keep your quality at the highest level. The motor is extremely powerful and reliable with 0.54 HP (400 W). Available in 4 models: 1/4 Inch collet (short & long shank) and 6 mm collet (short & long shank). From the Manufacturer The CP860ES is a heavy duty extended shaft die grinder. It offers the same great features as the CP860 but has a 6-Inch extented shaft to get to the hard to reach areas. Extremely powerful 1/2 HP motor makes tackling the tough jobs easy, super durable, industrial quality tool. The tool is designed for porting, weld grinding, and breaking sharp edges. Built-in regulator matches speed to job. Rear exhaust directs air away from work. Complete with 1/4-Inch and 6mm collet. 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.