[Material]Stained ceramic glass grinding tool is of standard frosted design, made of high quality copper material with plated , and long service life. [Wide Application]Our grinding tools are widely used for shaping and drilling hard materials such as tiles, glass, stained glass, stone and so on. It is also suitable for various of glass grinders. [Grinding Bit Size] The sizes are 1 inch, 3/4 inch, 1/4 inch, 0.31 inch inside diameter, and comes with 3 matching Hex wrenches, the combination set fully meets your DIY needs. [Excellent Design]The stained ceramic glass grinding tool adopts a standard frosted design, the brass core reduces shaft binding and 't stick to the grinder shaft; the drill bit is chrome-plated and hardened to improve performance, strength and durability. [High Efficiency]MCB01,MCB34,MCB14 series bits can glass grinding and improve work efficiency, which is an essential item in your toolbox., Weight: 0.35935348706 Pounds, Manufacturer: tiyao