HHIP Pro Series 2MT Medium duty small head live center. Concentricity is within .0002". Live center has a 60 degree angle. Made of hardened steel that is ground for high accuracy. The central spindle is lengthened to reduce vibration. Two specially designed, high-quality ball thrust bearings. Complete protection of bearings from the ingress of coolant, dirt or swart. a is 0.86. A is 1.65. B is 1.12. C is 1.92. Overall length is 5.70". Load rate is 330 lbs. Maximum RPM is 3,500.