Specification: 1.ST0107 5S Type Grinding Wheel 2.size:4" 3:5S type 4.used for grinding things We have the following workshops: 1. Workshop 1: ... companies exporting construction tools and machines, includingdiamond cutting blades,diamond grinding wheels,diamond profile wheelsdiamond vacuum brazed toolstile bits, marble ... DIY tools to Japan, Germany, the USA and Australia 5S Type Grinding Wheel 4"