Features: Brand new and high quality Diamond material, ensures efficient grinding, polishing, hole expansion, and chamfering for various materials like rock slabs, marble. The diamond sand is wear resistant and does not shed, providing sharpness for precise chamfering and grinding; offer stable and secure clamping to prevent slipping. Suitable for diy enthusiasts, mechanical maintenance personnel, and individuals seeking tool for their projects that require fine processing. Can be use with angle grinders and electric drills, this tool excels in applications involving rock slabs, marble, making it a reliable choice for a range of tasks. Reliable performances and durability for all your grinding, polishing, hole expanding, and chamfering needs Specifications: Material:Diamond Size:38mm/50mm 38mm:Approx.38x45mm/1.49x1.77inch 50mm:Approx.50x55mm/1.96x2.16inch Package Includes: 1x Chamfer Bit note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.