Description:Material: Crafted from diamond material, these glass diamond grinder bit head offer exceptional durability and performance, ensuring efficient grinding on glass and ceramic surfaceFeature: Comes with a handy wrench to facilitate easy installation and removal of the wheels, making your work more efficientHigh Working Efficiency: These diamond drill head make the glass grinding faster and help the work to be completed more efficiently, which are really practical and necessary tools in your toolboxPackage Includes: The package contains three essential grinding wheels in different sizes 1/4 inch, 1/8 inch, and 1/8 inch tapered, providing you with the right tool for various tasksIdeal for Professional Use: Greatly suited for both professional craftsmen and DIY enthusiasts who require precision tools for detailed glass or ceramic projectsSpecification:Material:DiamondSize Chart:1/4inch1/8inchPackage Includes:3 PiecesGlass Diamond Grinder Bit Head Tools1 Piece WrenchNote:Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.