General description The Mophorn 4PCS Diamond Drill Bits Set is a professional-grade cutting tool designed for exceptional performance. This set includes four hole saws and a precision saw blade, utilizing advanced vacuum brazing technology to deliver fast, clean cuts through various materials such as porcelain, granite, and marble. It combines efficiency with ease of use, making it a reliable solution for diverse drilling needs. Technical specifications Drill Diameter: 25 mm, 35 mm, 50 mm, 68 mm (1", 1-3/8", 2", 2-3/5") Segment Height: 15 mm (0.6 in) Bit Length: 60 mm (2.36 in) Material: Diamond Product Weight: 0.87 kg (1.92 lbs) Model: QHKZ4PCS Compatibility and accessories Compatible with most angle grinders due to a 5/8" universal thread. Includes 1 saw blade, 4 hole saws, and a toolbox for easy transport and organization. Installation To install, position the hole drill at a 45-degree angle, then adjust to a 90-degree angle for continued drilling on a horizontal surface. The