JET 505480 JAT-480, 1/4", 1 HP Die GrinderThe JAT-480 will exceed your expectations for power, comfort, and durability.  With its 1hp motor driving this tool you won't have to worry about stalling.
Features:
Upgraded Full, 1 HP motors provide the heavy-duty power needed for harsh industrial environments
Impact resistant composite housings reduce tool weight and user fatigue.
Sealed ball bearing design keeps out contaminants promoting smooth operation
Variable-speed throttle ramps up to maximum RPM, while the safety lock prevents accidental engagement
360 Rotating air inlet keeps the air hose tangle free for added safety
Comes standard with 1/4" Erickson collet
Rear facing exhaust
Performace @ 90 PSI. Air Inlet NPT 1/4". Min Hose Size 3/8"
Specifications| Collet Size (In.) | 1/4 | 
| Horse Power (HP) | 1 | 
| Free Speed (RPM) | 20,000 | 
| Air Consumption (CFM) | 5.3 | 
| Overall Length (In.) | 7.9 | 
| Sound Pressure (db) (A) | 87 | 
| Sound Power (db) (A) | 98 | 
| Vibration Value (m/s²) | 0.46 | 
| Air Inlet (NPT/In.) | 1/4 | 
| Air Hose (ID/In.) | 3/8 | 
| Height | 2.1000 | 
| Length | 7.9000 | 
| Weight | 2.3000 | 
| Width | 1.9000 |