EXCELLENT Ace? USA rethreading HEXAGON Die Set 1/4 TO 3/4 NC + NF 16 PIECES

Extra thickness of these Dies permits restoring of jammed threads to good condition. Outside dimensions of Die are the some as the nut for the thread being cut. A PRECISION Tool Steel Die, not to be confused with surface hardened Dies. 16 PIECES + WOOD BOX. No damage all have sharp blades.