Split Dies (Adjustable Die)

Split Dies (Adjustable Die)

Split dies are used to produce external male threads by hand using a DIE STOCK.   Split dies (also known as adjustable die) have adjusting screws allow the die to be compressed or expanded to accommodate slight variations in size, material strength, die sharpness or threading difficulty.  Split dies can be used to cut threads in a number of passes, tightening the die on each pass.


We stock a full range of split dies and die stocks from Presto (also known as button dies or adjustable dies). Split dies are available in metric coarse, metric find, UNC, UNF, BSW Whitworth, BSPF, BSF and BA. Buy online today.