GEARWRENCH Tap and Die Set, Measurement System: Metric/Imperial, 75 Piece, #4-40 to 1/2-20 Tap, M3x0.5 to M12x1.75, #4-40 to 1/2-20 Die Thread, BSP/NPT/UNC/UNF Thread Standard, Hexagon Die Shape, Plug/Tapered Tap Chamfer, Carbon Steel Tap, Carbon Steel Die, Blow Molded Case Package, Adjustable Die: No