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NPT & NPTF NPS & NPSF Pipe Tap Size Pitch (TPI) Drill Size* (inch) Pitch (TPI) Drill Size (inch) 1/16 27 0.242 (C) - - 1
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BSP vs NPT thread - Knowledge - Yuyao Jiayuan Hydraulic Fitting Factory in 2023 | Drill bit sizes, Thread pitch, Thread pitch chart
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