Feature: 1. MT3 M12 shank with boring top 50mm system. 2. Boring top can be fine tuned with good durability. 3. Can be boring, boring end face, cylindrical, stepped hole,and other processing. 4. The surface is quite smooth which offers a comfortable feeling and nice appearance. 5. The hardness and endurance of the surface are improved. 6. This MT3-M12 holder has better cleanness and more stable accuracy. 7. It can be used when boring holes, circles, end faces, step holes, inner hole end faces, cutting inner hole and ring groove on outer circles, etc. 8. It is a main accessory for boring CNC machine tool, jig boring machine, horizontal boring machine, common boring and milling machine. 9. ☆MT3 M12 shank with boring top 50mm system. 10. ☆Boring top can be fine tuned with good durability. 11. ☆Can be boring, boring end face, cylindrical, stepped hole,and other processing. 12. ☆The surface is quite smooth which offers a comfortable feeling and nice appearance. 13. ☆The hardness and endurance of the surface are improved. 14. ★MT3 M12 shank with boring top 50mm system. Boring top can be fine tuned with good durability. 15. ★Can be boring, boring end face, cylindrical, stepped hole,and other processing. Specification: MT3 M12 shank with boring top 50mm system has good durability, can be boring, boring end face, cylindrical, stepped hole, and other processing. Features: MT3 M12 shank with boring top 50mm system. Boring top can be fine tuned with good durability. Can be boring, boring end face, cylindrical, stepped hole,and other processing. The surface is quite smooth which offers a comfortable feeling and nice appearance. The hardness and endurance of the surface are improved. This MT3-M12 holder has better cleanness and more stable accuracy. It can be used when boring holes, circles, end faces, step holes, inner hole end faces, cutting inner hole and ring groove on outer circles, etc. It is a main accessory for boring CNC machine tool, jig boring machine, horizontal boring machine, common boring and milling machine. Specifications: Model: MT3-M12 Material: Steel Boring Top: 50mm / 1.97in Hole Accept: 12mm / 0.47in Precision: 0.01mm Boring Depth: 150mm max / 5.91in Suitable Boring Bar: 12mm shank Boring Bar Size: 115 * 50 * 50mm / 4.53 * 1.97 * 1.97in Boring Top Size: 60 * 50 * 50mm / 2.36 * 1.57 * 1.57in Package Weight: 1234g / 2.72lb Package Size: 130 * 120 * 60mm / 5.12 * 4.72 * 2.36in Note: Please allow 1-5mm error due to manual measurement and make sure you do not mind before ordering. The color of the actual items may slightly vary from the above images due to different computer screen, thanks for your understanding. Package List: 1 * Boring Bar 1 * Boring Top 3 * T Wrench Package List: 1 * Boring Bar 1 * Boring Top 3 * T Wrench