CONTAINS ONE EACH NPT TAPER PIPE TAP 1/8" 1/4" 3/8" 1/2" 3/4" 1" AND ONE EACH CARBON STEEL NPT HEX DIE 1/8" 1/4" 3/8" 1/2" 3/4" AND 1". A1 431-40012 12 PC NPT TAPER PIPE TAP & DIE SET 1/8" - 1". ALL TOOLS AND SUPPLIES HAVE BEEN CHECKED FOR FLAWS, CRACKS, DEFECTS, ETC.