Comes in 10 different sizes ranging from 3mm- 50mm for meeting various crafting needs, this hole saw kit is perfect for cuttingaccurate holes for glass, marble, granite, ceramic, etc. Made with the top-quality steel, each drill bit comes with a shank that holds the bit in place without slipping, with the side holes on the bits allow for easy slug removal to increase drilling accuracy and efficiency. Also the nickel platingmaximizes its life with great resistance to corrosion. SPECIFICATIONS: PACKAGE INCLUDES: Comes in 10 different sizes ranging from 3mm- 50mm for meeting various crafting needs, this hole saw kit is perfect for cuttingaccurate holes for glass, marble, granite, ceramic, etc. Made with the top-quality steel, each drill bit comes with a shank that holds the bit in place without slipping, with the side holes on the bits allow for easy slug removal to increase drilling accuracy and efficiency. Also the nickel platingmaximizes its life with great resistance to corrosion. SPECIFICATIONS: PACKAGE INCLUDES: