General description The Mophorn 5 Pcs Diamond Hole Saw Set is designed for precision cutting in tough materials such as tiles, marble, glass, and granite. This set includes five diamond drill bits with diameters of 22 mm, 35 mm, 40 mm, 50 mm, and 65 mm, all featuring an M14 thread for easy attachment to an angle grinder. The diamond coating ensures sharpness and efficiency, allowing for quick and smooth cuts without the need for water, keeping your workspace clean. Technical specifications Drill Bits Diameter: 22 mm / 0.87 in, 35 mm / 1.4 in, 40 mm / 1.6 in, 50 mm / 2 in, 65 mm / 2.5 in Total Length of Each Drilling Bit: 60 mm / 2.3 in Carborundum Height: 15 mm / 0.59 in Mounting Thread: M14 Gross Weight: 1.32 kg / 2.9 lbs Package Dimensions (L x W x H): 20 x 17 x 10 cm / 7.9" x 6.7" x 3.9" Installation To use the diamond drill bits, connect them to an angle grinder and start with a pilot hole to maintain the desired drilling position. Usage These diamond hole saws are ideal for