Made of premium steel material, the live center is of strong hardness, high precision and long durability. It is applicable to special lathe in the medium speed of the medium load processing. Features: The main body is made from 40CR steel, its quenching hardness is 45 to 50 HRC; the pointed part is made form high speed steel, quenching hardness is 55 to 60HRC. High quality bearing design, using high speed bearing for high accuracy. Dust proof seal preventing cutting dust enter into bearing thus prolong service time. Designed for lathe in medium speed and medium load environment. Can be used for high speed turning, suitable for CNC lathes. Specifications: Condition: Material: Metal Color: Silver Type: MT2 Accuracy: 0.01mm Quenching Hardness: 55-60HRC (Pointed part), 45-50HRC (Main part) Length: . 14.5cm / 5.7inch Largest Diam.: . 4cm / 1.6inch Shank Diam.: . 1.4cm / 0.6inch Weight: . 506g Package Contents: 1 x MT2 Live Center Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.