Nov 12, 2017· It looks like, from the 127 tooth gear on the spindle shaft, that your Sherline lathe is the Metric edition. Is that correct? I was looking at my Sherline Gear Selection Chart for Thread Cutting Attachment and the only application for the 127 tooth gear on the spindle shaft is if you have a metric 4100 or 4410 lathe.
Sherline 5800 Series NexGen vertical milling machine ; CNC Ready inch version (needs assembly) Comes with Package A (Step block holddown set, hex Tdriver, center drill set, end mill holder, Milling vise, etc.) 18inch extended mill table; 18inch mill base with Yaxis leadscrew protection