Standard NPT Tap Drill Sizes Chart
StandardNPTTapDrillSizesChart.pdf Standard NPT Tap Drill Sizes NPT Size Tap Drill Size (in.) Decimal Equivalent (in.) 1/16 – 27 “C” 0.242 1/8 – 27 “Q” 0.332 1/4 – 18 7/16 0.438 3/8 – 18 9/16 0.562 1/2 – 14 45/64 0.703 3/4 – 14 29/32 0.906 1.0 – 11 – 1/2 1-9/64 1.141 1 – 1/4… Continue reading Standard NPT Tap Drill Sizes Chart
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