Since 1984, GG POINTTECH is specialized in manufacturing live center and machine tools. GG POINTTECH is exporting over 21 countries and continuously expand to the whole world. BNI series is excellent for individual production of various workpieces through different insert shafts. 3BNI SET consist of a body of MT3 size, 6 types interchangeable insert shafts and disassemble kit. The interchangeable inserts are standard 60° point, 75° point, 90° point, extra-long point, pipe point and female point. It has high Runout accuracy (Center inner diameter : 0.003mm, TIR 0.0001”, After point locking: 0.005mm, TIR 0.0002") and life-time lubricated bearing. Max RPM is 5,000. High performance lip seal and deflected shaft design and specially finished coating offer a great functional advantage to protect bearing space from ingress by dirt and coolant. It is made of drop-forged raw materials and heat-treats for extra strength, rigidity and long life. (HRc. 60±2) This GG live center is installing on almost all of the Korean machine builders. Finally, It's now available in the AMAZON also.