General description Diamond Drill Bits set includes 12 sizes ranging from 6mm to 50mm, designed for precise drilling in materials such as ceramic, glass, marble, and tile. The set comes with an adjustable hole saw drill guide jig fixture that aids in achieving clear and accurate holes. Technical specifications Sizes: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 22mm, 26mm, 32mm, 40mm, 50mm Material: Steel with diamond coating Maximum opening length of the guide fixture: 3-1/4 inches Measurement allowed error: +/- 1-3cm Compatibility and accessories Includes 12 diamond-coated drill bits Includes 1 adjustable hole saw drill guide jig fixture Installation Adjustable hole saw drilling guide fixture with suction cup for stability Two modes for fixing (3 or 4 bearings) for versatility Usage Ideal for drilling holes in glass, tile, bottles, blocks, jars, fiberglass, porcelain tile, ceramic, marble, and light stone Provides high-precision, smooth cuts without hemming Other information