ThreadSize. 4-4 0. 4-4 8. 5-4 0. 6-3 2. 6-4 0. 8-3 2. 8-3 6. 1 0-2 4. 1 0-3 2. 1 2-2 4. 1 2-2 8. 1 / 8 "-2 7. 1 Iron. Nickel. Plastic. Stainless Steel. Steel. Titanium. Hardened Steel. Flute Type. Spiral. Spiral Point. Straight. Thread Type. BSPT. Metric. NPT. UNC. UNF. Shank Type. Hex. Morse Taper. Round. Square. Component. Clutch

DrillSize* (inch) 0.242 (C) 0.332 (Q) 7/16 9/16 45/64 29/32 1-9/64 1-31/64 1-23/32 2-7/32 2-5/8 3-1/4 3-3/4 4-1/4.
TAPDRILL SIZES Machine Screws IPS Pipe Recommended NPT, NPTF Screw Tap Drill Size Nominal w/o Reamer Size Drill Decimal Size Drill Decimal 2-56 50 0.0700 1/16-27 C 0.2420 3-48 47 0.0785 1/8-27 Q 0.3320 3-56 46 0.0810 1/4-18 7/16 0.4375 4-40 43 0.0890 3/8-18 9/16 0.5625
TapDrill Sizes Charts; GLOSSARY; LEARNING Menu Toggle. How to Use the Machining Doctor; Machining Doctor Classroom; G-Codes; Dryseal Pipe Threads (NPTF) British Pipe Threads (BSP) ACME Trapezoidal Threads; Materials Menu Toggle. 3-8 NPT : 3.5 : 8 : 3.452 - 3.467 : 3.3786 - 3.3862

TappingNPT pipe threads. Thread starter Overland; Start date May 5, 2023; Replies 40 Views 2,484 1; 2; 3; If you drill the correct drill size thru, then maybe start with 10 complete turns of the tap handle to start. I've always left 8 threads on non-gaged stuff. Leaves a little room for a touch-up later if it's ever needed.

MetricISO Fine Tapping Drill Sizes, Metric ISO Coarse Tapping Drill Sizes, UNC UNC, UNF UNS, BSW Whitworth, BSF, BSTP Taper Pipe., BSPF Parallel Pipe, and NPT Taper Pipe. Toggle navigation. Why Choose Us? Products . All Products Threads per Inch Tapping Drill Sizes; Preferred Alternative; mm Inch mm Inch; No 2: 56: 1.85: 1.8: No 3: . 810 658 815 471 904 860 394 125

3 8 npt thread drill size