http://www.gison.com.tw/product/air-wet-tools.htm

Specifications:
Rear Exhaust, Safety Lever
Spindle Size : 5/8-11, M14
Max. Speed : 5,000 rpm
Weight : 2.00 kgs
Length : 265 mm
Air Cons : 0.23 m3/min
Air Inlet : 1/4"
Hose Size : 6.5 mm(I.D.)
Sound Pre : 84 dBA
Vibration : < 2.5 m/sec2
Air Pressure : 90 psi
Packing : 8 pcs/1.43 cu.ft/G:20.5 kgs

Features:
1.Low vibrate and noise with excellent performance.
2.Gravity casting housing carries long duration of tool.
3.A regulator under safety lever enables user to adjust frequency of air.
4.Centre water feed function reduces dust, and improves environment protection.
5.Water shroud prevents users wet their hands in cold weather.
6.Water valve can be adjusted for variable water-flow.
7.Includes a reversible side handle, exhaust muffler, air hose adapter and water valve with hose adapter.
8.Both 3" and 4" pads are available.
9.Light weight and compactable design are also suitable for single-hand operation.
10.Rubber sleeve keeps hands from getting cold.

Applications:
A poweful, lightweight, reliable air tool ideally suited for continuous waterfed polishing.

http://www.gison.com.tw/product/air-wet-tools.htm