*KeyFeatures *Sturdy & Durable Materials: The cutting blade of the diamond hole saw is made from a premium grade of diamond that delivers more effective performance than traditional carbide, or bi-metal hole saw. *Ease of Installation: The diamond drill bits for ceramic should be connected to an angle grinder. Drill a pilot hole to begin your drilling to keep the saw from wandering from the desired hole location. *High Performance: The ceramic drill bits for pots feature enlarged holes on the body to ensure that filings can be moved effectively while the blades are rotating at high speed. *Fine Portable Case: The 10 pcs diamond drill bits come with a compact box where the bits are not in use. You don't have to worry about the missing of any of them. *Wide Application: The core extractor ensures a clean and accurate hole on hardest and abrasive materials like tile, granite, marble, other stone, and porcelain. *Note: You might wear gloves and a mask when using the machine. And you could move dust particles with a cleaner at the same time. ******************************************************************************************************* *Specifications Drill Bits Diameter: 20/25/40/45/50/68 mm (0.79/1/1.6/1.77/2/2.7 in) Blade Thickness: 1.4 mm (0.06 in) Blade Diameter: 125 mm (4.9 in) Hole Diameter: 22/23 mm (0.87/0.9 in) Carborundum Height: 15 mm (0.59 in) Mounting Thread: M14 Gross Weight: 1.65 kg (3.64 lb) Package Dimensions (LxWxH): 24x18x11 cm (9.4"x7.1"x4.3") ******************************************************************************************************* *Pakcage Content 1 x Tool Box 8 x Diamond Drill Bit 2 x Diamond Saw Blade