SET OF 10 DIAMOND HOLES FOR CERAMIC GRES, MARBLE GRANITE GLAZE Item number: 06716 Diamond hole saws are made of hardened steel, and diamonds are embedded by galvanic method, which should be cooled with a liquid during operation. For this purpose, you can use a regular sprayer or a soaked sponge. A set of 10 hole saws in sizes: 6 mm, 8 mm, 10 mm, 16 mm, 20 mm, 28 mm, 35 mm, 45 mm, 50 mm, 68 mm, makes it the optimal set available on the market. Each holesaw has side holes to ensure air flow during operation. HOLEWARE SET Hole saws are designed for making holes in ceramics, stoneware, glass and terracotta. In order to extend the service life and increase the number of holes cut, work should be done wet. Electroplated diamonds have an advantage over others in that the hole made with it does not have any chips. The hole saw can be used dry, but the service life is shortened. MAIN FEATURES OF THE PRODUCT: LARGE SET OF 10 PIECES NO CHIPPING DURING DRILLING EVENLY DISTRIBUTED DIAMONDS PRECISE MANUFACTURING Diamond drill bits are characterized by high durability and quality at the highest level. They were created for the most demanding. Access to up to 10 holesaws will work well when used by laymen and professionals. We recommend that you work lightly with a wet sponge inserted into the holesaw, spraying outwards at a slight angle. SPECIFICATION: Material: Hardened steel Fastening: Keyless chuck Rotation speed: 500-900 rpm Sizes: 6mm, 8mm, 10mm, 16mm, 20mm, 28mm, 35mm, 45mm, 50mm, 68mm Color: Silver Quantity: 10 pieces Weight: 550 g Intended for wet operation Pouch included