Features: Experience precise and efficient chamfering, grinding, and polishing with our M10 thread conical grinding wheel, designed for use on glass, ceramic, porcelain tiles, and various stone. Crafted from emery and silicon carbide, this bit ensures a smooth, high end finish while being durable and resistant to wear and tear. For craftsmen, DIYer enthusiasts, and mechanical repair professionals who require meticulously edge finishing and stress relief in their projects. Perfectly suited for use with 100 type angle grinders, this tool is essential for reducing the risk of cracking in standard and large format tiles under tension. The convenient M10 thread allows for easy installation and stable clamping, making it a indispensable accessory for any serious stonework or tile project. Specifications: Size:Approx.44mm/47mm Package Includes: 1pcs Chamfer Countersink Bits note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.