Specification: 1.ST0705-B 3",3.5",4" Air Wet Sander/Polisher 2.4500rpm 3.AT-585WL We have the following workshops: 1. ... discs, diamond grinding discs, diamond resin grinding wheels, etc. 2. Workshop 2: tungsten carbide burrs: inch size and metric size, all standard ... , the USA and Australia ST0705-B 3",3.5",4" Air Wet Sander/Polisher