ITEM NAME:100mm 4'' Glass Stone Grinding Cutting Tool Diamond Coated Flat Wheel Disc# LJ 100mm 4'' Glass Stone Grinding Cutting Tool Diamond Coated Flat Wheel Disc# LJ a.imagelink a:hover.imagelink {color:#AF070B;.Also ideal for the electrolytic and grinding of hard alloy products. 1 x Diamond coated grinding disc wheel. Color: Silver. Easy and convenient to use, long service life. High hardness, wear resistance, excellent impact resistance.