
MB Connection ITS BORE is a modular toolholder system ITS BORE d1 for boring, milling, drilling and tapping. m1 This rigid, high-precision system is manufactured in one of the world’s most advanced production facilities. The system is designed with extreme flexibility and simplicity, making it suitable for machine tools, machining centers and flexible manufacturing systems. It is recommended for machining strict tolerances with a high degree of surface finish. Its cylindrical-conical coupling and radial-expanding pin ensure maximum rigidity and concentricity in boring and milling. The system has an internal coolant supply in all components. S Maximum Driving Torque Designation d 1 øm 1 Size Allen Key (mm) Tightening Torque (Nm) ! (Nm) MB14 14 10 2.5 2-2.5 40 MB16 16 10 2.5 2-2.5 40 MB20 20 13 3 4-4.5 70 MB25 25 16 3 6.5-7.5 120 MB32 32 20 4 7-8 200 MB40 40 25 5 16-18 400 MB50 50 32 6 30-35 700 MB63 63 42 8 70-80 1600 MB80 80 42 8 70-80 1600 MB110 110 76 14 200-220 6300 746 ISCAR