... & Exp. Co., Ltd. is specialized in researching, designing and manufacturing various type of diamond tools. Our cutting, grinding/polishing ... Saw Blades, Core Drill Bits, Cup Wheels, crack chaser and tuck point blade, Router Bits & Profiles, Flexible Polishing Pads ... buffer /drill*Lightweight aluminum housing with bicolor soft grip and golden black anodized head sleeve *Variable speed throttle for easy ...