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. BS series is excellent for CNC, grinder and high speed light-duty machining. It is MT4 size with 60 degree centre. The BS live center is highly accurate, with runout guaranteed to 0.002mm, TIR 0.0001”. Max RPM is 6000. A double row angular contact bearing, two single row angular contact bearings, and a rear needle roller bearing combine to provide improved runout, greater stability, longer tool life, and superior performance. Anti-friction seals for coolant deflectors and high speed. 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.