General description Discover the efficiency of the Mophorn Concrete Hole Saw Kit, designed for precise wall openings. This comprehensive set excels in cutting through brick, concrete, cement, and stone walls and floors, utilizing advanced welding technology for durability and reliable performance. The included 135° sharp pilot drill bit ensures accurate hole placement, making it ideal for various applications. Technical specifications Angle of Pilot Drill Bit: 135° Size of Hole Saws: 30mm (1-2/11"), 40mm (1-3/5"), 65mm (2-9/16"), 80mm (3-5/32"), 100mm (3-15/16") Length of Connecting Rod: 300mm (11-13/16") Material: Carbon Steel Length of Center Drill Bits: 110mm (4-1/3") Compatibility and accessories Compatible with most hammer drills utilizing SDS PLUS and SDS MAX shanks Includes 10 pieces: five hole saws, two connecting rods, and two pilot drill bits Compatible with models from Bosch, DeWalt, Hiltex, Makita, and Goplus Installation Utilizes SDS PLUS and SDS MAX shanks for easy