Lathe Tailstock Die Holder Set  Sliding / Floating Type  # 4 Morse Taper Shank  Lathe Threading Kit For Imperial & Metric Dies   DESCRIPTION  Shank : 4MT Will Hold Split Button Dies Of Size  13/16" , 1" , 1-5/16" , 1-1/2" 20MM - 25MM - 30MM - 38MM Helps in cutting accurately aligned threads on lathe machine using standard dies. Holders are held on the shank by a pin which locates in slots on either side of the holder allowing about 1-1/2" of travel. Set includes a punch of size 3/8” for easy removal of split button die.