Center height: 35mm Central shaft diameter: 25mm Overall length: 170mm Fixed seat two holes center distance: 56mm Maximum stroke: 70mm collet can clamp between 1.5-10mm drill bit The chuck is fixed and non-rotatable Color: silver material: metal Included: 1 Set x Live Center Only the above package content, other products are not included. Note: Light 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.