... 1.Item No:ST0014-A3 2.Diamond Sintered Core Bits 1/2" gas 3.material:diamond 4. ... grinding wheels, etc. 2. Workshop 2: tungsten carbide burrs: inch size and metric size, all standard ... suction cups, grout bags grout hole saw kits, carbide grout saws flexible blade margin trowels, notch trowels, ... and industrial tools, like dies, taps, hss or carbide end mills, counter sinks, step drills, cobalt drills, ...