66-pc metric tap & hex die set irwin industrial tools sets the standard for delivering quality every step of the way in your threading applications. 66-pc set in plastic case includes the following items: metric plug tap and 5/8″ hexagon dies in sizes : 3mm – 0.50, 4mm – 0.70, 4mm – 0.75, 5mm – 0.80, 5mm – 0.90, 6mm – 1.00 metric plug tap and 1″ hexagon dies in sizes : 7mm – 1.00, 8mm – 1.00, 8mm – 1.25, 9mm – 1.00, 9mm – 1.25, 10mm – 1.25, 10mm – 1.50, 11mm – 1.50, 12mm – 1.50, 12mm – 1.75 metric plug tap and 1-7/16″ hexagon dies in sizes : 14mm – 1.50, 14mm – 2.00, 16mm – 1.50, 16mm – 2.00, 18mm – 1.50, 18mm – 2.50 metric plug tap and 1-13/16″ hexagon dies in sizes : 20mm – 2.50, 22mm – 1.50, 24mm – 2.00, 24mm – 3.00 pipe thread plug tap and 1″ hexagon dies in sizes : 1/8″ – 28 bsp threading tools : adjustable die stock – 1″ dies, adjustable die stock – 1-7/16″ hexagon dies, adjustable die stock 1-3/16″ hexagon dies, plain die stock – 5/8″ hexagon dies, t-handle wrench – taps no. 0 to 1/4″, adj. Handle tap wrench – taps no. 0 to 1/2″, adj. Handle tap wrench – taps no. 1/4″ to 1/2″, two-in-one tap wrench – taps 1/4″ to 1/2″, 16 leaf metric thread pitch gauge