This grinding head has 1/4 "inch diamond head in diameter and its a universal fit, including our grinder listed, Glastar, Inland and Kristall glass grinders.

It is standard diamond grit and will grind your glass, shells etc It is brilliant for grinding inside curves if you would like to drill a hole it will do that too.

A great opportunity to replace your tired old grinding head at a reasonable price or to add to your range of grinding heads. Check out my other listings for 1/8th & 3/4 inch grinding heads & sets