General description Upgrade your toolkit with the Mophorn Diamond Holesaw Set, featuring 6 diamond drill bits ranging from 20mm to 68mm (0.79" to 2.7"). Designed for clean, dry drilling, this set allows for quick and precise cuts without the need for water, keeping your workspace tidy. Technical specifications Carborundum Height: 13 mm (0.5 in) Drill Bits Diameter: 20/25/40/45/50/68 mm (0.79/1/1.6/1.8/2/2.7 in) Total Length of Each Drilling Bit: 60 mm (2.3 in) Gross Weight: 1.5 kg (3.3 lbs) Mounting Thread: M14 Package Dimensions (L x W x H): 20 x 17 x 10 cm (7.9 x 6.7 x 3.9 in) Installation To use these diamond drill bits, simply connect them to an angle grinder and start with a pilot hole to prevent the saw from drifting, ensuring accurate drilling and efficient cutting. Usage Ideal for creating precise holes in tough and abrasive materials such as tile, granite, marble, stone, and porcelain. It is advisable to wear gloves and a mask during use, and to clean up dust particles with a