Features: Conical part is made from high speed steel, main body part is made from 40Cr steel, quenching hardness 45 to 50 HRC. The 60 center runs in its own high speed bearings and is used at the non-driven or tailstock end of a machine. Dust proof seal preventing cutting dust enter into bearing thus prolong service time. Designed for high speed lathe and CNC lathe to achieve high precision. Well balanced and smooth for effective turning. Specifications: Type: MK2 Material: 40Cr steel, HSS Center Point: 60 Accuracy: 0.01 Quantity: 1pc Package Includes: 1 x MK2 Live Center Package List 1Conical part is made from high speed steel, main body part is made from 40Cr steel, quenching hardness 45 to 50 HRC 2The 60 center runs in its own high speed bearings and is used at the non-driven or tailstock end of a machine 3Dust proof seal preventing cutting dust enter into bearing thus prolong service time 4Designed for high speed lathe and CNC lathe to achieve high precision 5Well balanced and smooth for effective turning