Yeah it doesn't make sense because the bit I thought was part of the kingpin drift set we were using at Simons looks like it wasn't part of the kingpin set after all, and seeing how well it fitted the drive flange and how easily it drifted it out of the bearings it was probably the tool for that and the fact it was in with the kingpin drift set little more than a red herring. There, that all makes sense now, doesn't it?