... : 1.ST0707 Air Grinder Set 2.size:dia.3/dia.6mm,chuck-2.38mm 3.5000rpm 4.good quality We have the following workshops: 1. Workshop 1 ... discs, diamond grinding discs, diamond resin grinding wheels, etc. 2. Workshop 2: tungsten carbide burrs: inch size and metric size, all standard ... of DIY tools to Japan, Germany, the USA and Australia Air Grinder Set