Ideal for just about all jobs that require precision, the 228pc Piece Rotary Tool Set is a unique kit with assorted bits and accessories for every job imaginable. For use with marble, concrete, brick, porcelain, ceramics, epoxy, woods, rock, glass, metal, tile, stone, & more. Whether your craft project is large or small, it most likely has some detail work that requires the right tool for the job. Stick to the basics with this set and you will surely be in good company.