This center water feed 4500rpm air polisher GPW-7 has a front side exhaust port, which allows the user to dry the edge with the tool and inspect their work as they go.  Economical and reliable, this tool is a great value. Lightweight and compact design which is suited to single handed operation. Includes one 4" or 3" back holder.
 
 
SPECIFICATION
Side Exhaust, ON-OFF Switch
Spindle Size : 5/8-11, M14, M16
Pad Size : 3" or 4"
Max. Free Speed : 4,500 rpm
Max. Horse Power : 0.43 HP (321W)
Weight : 1.17 kgs
Length : 246 mm
Air Cons : 0.46 m3/min (16.2 scfm)
Sound Pressur : 84 dBA
Vibration : < 2.5 m/sec2
Air Pressure : 90 psi (6.3 kg/cm2)
Packing (1 Carton) : 10 pcs/1.4 cu.ft/G:20 kgs
* without Air Hose / Water Hose *
FEATURES
Low vibrate and noise with excellent performance.
Gravity casting housing carries long duration of tool.
3-section-shifting knob enables user to adjust frequency of air for reducing free speed.<br/>Section 1. 700 rpm, <0.1HP<br/>Section 2. 3800 rpm, 0.25 HP<br/>Section 3. 4500 rpm, 0.43 HP
Centre water feed function reduces dust, and improves environment protection.
Water valve can be adjusted for variable water-flow.
Includes a reversible side handle.
Rubber sleeve keeps hands from getting cold. 
Both 3" and 4" pads are available.
Lightweight (3 lbs) and compactable design are also suitable for single-hand operation. 
Don't use polishing pads bigger than 100 mm (4"). The 125 mm (5") is easy to cause damage to the tool.