01-01-2020, 02:57 PM
If you can't find a secondhand 1 1/4" BSCon die, then what you need will likely be marked as a 1 1/4" x 16 Whitworth Form or (WF) die. These people sell them new. https://www.tracytools.com/taps-and-dies...ct_id=1174 they're going to be a bit spendy if you want the HSS version.