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Tap Size Decimal Equivalent Decimal Equivalent Drill Size NPT & NPTF (Taper) Drill Size NPS (Straight) PIPE TAP SIZES TAP DRILL SIZES (75% prob. thread) #0-80 1.6mm x .35 #1-64 2mm x .4 #1-72 #2-56 #2-64 2.5mm x .45 #3-48 #3-56 #4-40 #4-48 3mm x .5 #5-40 #5-44 3.5mm x .6 #6-32 #6-40 4mm x .7 #8-32 #8-36 #10-24 #10-32 5mm x .8 #12-24 #12-28 6mm ...
NPT & NPTF NPS & NPSF Drill Size* Pitch Drill Size (TPI) (inch) (TPI) (inch) Tap Drill Charts |. pe Threads. PTFN. SFPi. 1/16 1/8 1/4 3/8 1/2 3/4. 1-1/4 1-1/2. 2-1/2.
21 Ιουλ 2024 · An NPT Tap Drill Chart is a handy reference tool that tells you exactly what size drill bit to use when preparing a hole for NPT (National Pipe Thread) tapping. It's like a recipe book for creating perfect pipe threads every time.
Machinist Metric ISO Screw Thread Tap - Drill Size Chart. The following is a ANSI Standard Pipe Thread Recommended Tap size and Drilled Pilot Hole for Taper. National Pipe Thread Taper ( NPT ) is a U.S. standard for tapered threads used on threaded pipes and fittings .
1 Φεβ 2021 · This formula works for both metric and imperial units, and for all 60-degree threads (all ISO, DIN, UTS, UNC, UNS, and UNF bolts). The first tap drill chart below is in mm and the next in inches. Both are available as a printable tap drill chart PDF as well.
NPT - Briggs Standard Pipe threads - Taps and Drill Sizes. The NPT - National Pipe Taper Threads - is based on the Briggs Standard Pipe Thread. Drill sizes for Briggs Standard Pipe taps for direct tapping without reaming are indicated below:
Find the complete standard NPT tap drill sizes chart, including decimal equivalents for accurate conversions. Easily reference tap drill sizes from 1/16 to 3 inches for precise machining and threading applications.
