Portable 110V 65W Stained Glass Grinder Machine with 5 Diamond Grinder Bits - Professional Glass & Ceramics Art Tool for DIY Stained Glass Making, Mosaics & Jewelry Crafting - Perfect for Home Studios & Art Workshops

This is a replacement for a similar grinder whose bit froze up on the pin, making it impossible to replace. I have learned that the grinding bit should be removed and cleaned after each use. I clean the inside with a Q Tip and lubricate it with petroleum jelly, reinstalling it on the pin only when ready ro use. I also line the reservoir with parchment paper to make it easier to clean out the sludge.That said, it is a powerful glass grinder, and the different sized bits that came with it make it versatile for shaping and smoothing different sizes and angles of stained glass pieces. The face shield is very effective. The water reservoir feeds to the platform, so an extra sponge is not necessary. It does everything I need it for. Very satisfied.