Diamond Hole Saw Set (10 PC.) is ideal for cutting precise holes in gemstones, glass, marbles slate, tile, and more for construction, crafts, hobbies, and home. You can use them with a drill press.
•Shank: 3/8'', 1/4''
•7'' Grit: 80
•Sizes: 6mm,8mm,10mm, 14mm,16mm, 18mm, 22mm, 35mm, 40mm, 50mm