Threading Application Guide TopThread Threading Widia TopThread External Threading Square Shank Toolholder Sizes Metric - 10-32mm Cresting (Full Pr
Threading Application Guide TopThread Threading Widia TopThread External Threading Square Shank Toolholder Sizes Metric - 10-32mm Cresting (Full Profile) UN TPI of 32-7 ISO 1,5-3,0mm pitch 60° Partial Profile Flat Top (NTF and NTK) UN 44-4.5 TPI ISO 0,6-5,5mm pitch TopThread Internal Threading Boring Bar Diameters Metric 10-50mm Minimum bore 11,5mm Steel Cresting (Full Profile) UN 16-8 TPI ISO 1,5-3,0mm pitch 60° Partial Profile Flat Top (NT-1L, NTF, and NTK) UN 24-4.5 TPI ISO 1,0-5,5mm pitch