Super B Frame Tap

TB-1901: 3mm x 0.5, for rear wheel drop-out alignment screws
TB-1902: 5mm x 0.8, for water bottle, toe clip, fender and rack bosses
TB-1903: 6mm x 1.0, for cantilever brakes and large fender bosses
TB-1904: 10mm x 1.0, for derailleur hanger