Specification: 1.ST0705 Pneumatic Water Sander 2.4500RPM 3.size:1 3/8" 4.weight:1. ... back-up pads,grinding stone, stone brushesstone cutting machines, pneumatic water sandersmetal suction cups, plastic suction cups, grout bagsgrout hole saw ... DIY tools to Japan, Germany, the USA and Australia Pneumatic Water Sander 4500RPM