Composite handle reduces vibration.Rib textured handle provides a firm grip.Lever throttle for feathering control.Compact and lightweight.Front exhaust.Built-in regulator.SpecificationsCollet Size: 1/4".Free Speed: 20,000 rpm.Overall Length: 5-3/4" (146mm).Net Weight: 1 lb.Motor: 1/3 hp.Air Inlet Thread: 1/4" NPT.Air Hose I.D. Size: 3/8".Avg. Air Consumption: 3 cfm.Air Pressure: 90-120 psi.Astro Pneumatic 1240 1/4" Die Grinder 90 Degree Angle Head