features:<br /> mt4 live center<br />high quality triple bearing design <br />great for high speed turning， cnc work<br />this product using deep groove ball bearing combination<br />made of bearing steel with high precision and hardness<br />applicable to special lathe in the medium speed of the load processing<br />can be used for high speed turning， suitable for cnc lathes<br />has high rigidity and high wear resistance<br />dust proof seal for long service life<br /><br />specifications:<br />material: bearing steel<br />color: silver<br />length: approx 20.5cm/ 8.07"<br />diameter: approx  6cm/ 2.36"<br />shank diameter: approx 2.8cm/ 1.1“”<br />quenching hardness: 55-60hrc (pointed part)， 45-50hrc (main part)<br />weight: 1610g<br /><br />packaged included: <br />1 x mt4 triple bearing