Park Tool thread taps are made from high carbon steel and are precision ground Cut easily and fit all conventionla tap handles Set Includes: TAP-12.1 : 12mm x 1.0 TAP-12.2 : 12mm x 1.5 TAP-12.3 : 12mm x 1.75 TAP-15.1 : 15mm x 1.0 TAP-15.2 : 15mm x 1.5 TAP-20.1 : 20mm x 1.0 TAP-20.2 : 20mm x 1.5 TAP-20.3 : 20mm x 2.0 Tap set TAP-TA-SET ...