52 piece metric/UNF/BSP tap and die set in a convenient metal case, for general workshop use. Made from high carbon alloy steel. 7 metric dies: sizes M3x0.5, M4x0.7, M5x0.8, M6x1.0, M8x1.25, M10x1.5, M12x1.75 5 UNF dies: sizes  ¼, 5/16, 3/8, 7/16, 1/2 2 BSP dies: sizes 1/8", ¼" 14 Taper taps metric/UNF sizes as  dies Tap wrench -T type ¼" capacity Tap wrench -American pattern ½" capacity Die holder 13 HSS twist drills: sizes 2.5, 3.3, 4.2, 5.0, 5.5 6.8, 6.9, 8.5, 8.8, 9.9,10.3, 11.4,11.8mm Screw pitch gauge Screwdriver Centre punch Screw extractors Nos. 1, 2, 3, 4, 5