QET 2185 BCT

QET 2185 BCT
Collet Capacity: 6mm, 8mm or 1/4", 3/8" 
Voltage: 21V / 4.0Ah
Output Power: 850W
No-Load Speed: 2,500 - 30,000 rpm
Supporting Base: 0 - 40mm (0" - 1-9/16")
Supporting Embeded Base: 0 - 35mm (0" - 1-3/8")
Battery Capacity: 4.0Ah
Weight: 1.0kg