Dremel663 Diamond-impregnated Glass Drilling Bit, Rotary Tool Accessory with 6.4 mm Diameter for Drilling and Cutting Glass

I bought this to use with my mini stemmed to drill holes in fused glass. I’ve bought cheap ones and been able to drill maybe 2 pieces well before they’re useless, this one is more expensive but I’ve drilled about 20 pieces and it’s still fantasticYou get what you pay for, this is value for money and good quality. It’s hollow so drills fused glass well

I wanted to cheap out so I first ordered a set of 6 similar noname drilling bits. That was a complete disaster as all six got destroyed before I managed to drill a single hole on a glass window.This one is quite the opposite. The hole was complete in about 15 seconds and there is no visible wear on the drilling bit. It definitely worth the money - buy this instead of the cheap bits.

Great drilling bit. Great service. Would use seller again & recommend. Thank you

Much easier to drill sea glass with this bit

he realizado un agujero en un canto rodado bastante grueso, todo perfecto, pero se precisa bastante paciencia pues lleva tiempo el conseguirlo. eso si el resultado fantástico....