This is based on the Tubalcain (MrPete22) design. I converted the dimensions to metric (maybe that should be decimated, as in converted to decimal system ) as my lathe and most of my tooling is metric. The handle hasn't been located yet as it's a press fit and I will probably be bluing it all first. The knurl has been smoothed off slightly as I find the sharp knurls make my fingers sore. I'm a wimp really. That bit probably wasn't necessary as I'll be mostly using the handle.