Selection of metal material, long life.High precision, high hardness.Compact, easy to operate.Easy and highly efficient.Application:Widely used in homemade lathe woodworking lathe beads.Color: silvermaterial: metalLength:140mmCenter height:31mmDiameter of shaft:20mmDistance between holes:45mmSize of hole:6.6mmMaximum extension distance:40mmClamping range:0.6-6mmPackage Included:2 set Live Center with ChuckNote:Please note that this center is not revolving.Only the above package content, other products are not included.Note: Light shooting 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.