Large and heavy duty standard live cup centre with a 60° point and full-sealed ball bearing precision for long centre life. The head diameter measures 33mm and is available only in indudstry-standard #2 morse taper.
BUT WAIT THERE'S MORE (Thanks Demtel!)
You can pop the centre pin out and you have a hollow revolving cup boring centre. Designed to work with the 3/8in long hole drill auger available in the Crown (and most of other ranges), you can turn your work piece using the live centre, remove the centre pin and easily remount the work exactly where it was and complete your deep hole drilling. Piece of cake!