Seco’s range of 351 helix- and 73 straight-threading taps for blind holes are available for general-purpose and material-specific applications. Many are available in both with and without internal coolant in both helix- and straight-fluted taps. Tap dimensions for general purpose range from 3 mm to 64 mm and in thread profiles M, MF, UNC, UNF, G, NPT and NPTF. Material-specific (ISO P, M, and N) helix taps cover 1.6 mm to 30 mm in thread profiles M and MF. Straight fluted (ISO-K) thread profiles cover 3 mm to 42 mm in thread profiles M, MF, UNC, UNF and G.
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