Ecarke Diamond Grinder Bit Head Tools for Stained Glass - 4 Sizes (1 3/4, 1/4, 1/8 Inch) with Brass Core - Glass Supplies — Open-Box, 14% Off

The drill bit is chrome-plated and hardened have 4 pieces of diamond grinding bits in 4 sizes, namely, 1 inch, 3/4 inch, 1/4 inch,1/8 inch，along with 4 matching allen wrenches, different sizes and complete combination to fully meet your DIY use

The stained ceramic glass abrasive tool adopts a standard frosted design, and the Brass core reduces shaft binding and will not stick to the shaft of the grinder ,Made of quality copper material, and the surface is plated with diamonds, Diamond abrasive bonding surface is double plated , high strength, and long life

The hole diameter：8mm/0.31in.These diamond drill bits in MCB01、MCB34、MCB14、MCB18 make the glass grinding faster and help the work to be completed more efficiently, which are really practical and necessary tools in your toolbox

Stained ceramic glass abrasive tool adopts a standard frosted design, and the brass core reduces shaft binding and will not stick to the shaft of the grinder; The drill bit is chrome-plated and hardened to improve performance, strength and durability

Stained glass drills are suitable for forming and drilling of hard materials such as ceramic tiles, glass, colored glass, stone, etc., also proper for shaping most types of glass, ceramic tiles, stone and similar materials, and work well for glass grinders of most brands