Superhard Coatings are difficult to grind or polish. These hard, brittle surfaces require the highest technology to meet quality and precision objectives. KGS provides innovative flexible diamond tools to grind and polish HVOF coated hydraulic rams, shock absorbers, large rollers and other hard coated cylindrical parts as the KGS Telum� CH, KGS Flexis� and KGS Swiflex� SDA diamond and Ferrzon� products.