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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.
National Pipe Threads Tap Drill Chart. NPT and NPS threads share similarities in thread angle, shape and pitch (TPI – threads per inch). However, they differ in their design: NPT threads are tapered, while NPS threads are straight (parallel). Both types feature a 60° included angle.
TECHNICAL RESOURCE GUIDE | TAP DRILL CHART. Phone: 1.800.221.0270 | Fax: 1.800 ... 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
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 .
NPT Thread Chart Tap Drill Size Calculator for recommended drill and tapped hole sizes according to ASME B1.20.1 "Pipe Threads, General Purpose (Inch)" standard. The drill size shown by the calculator is the diameter of the standard drill which is the closest to the minimum minor diameters of the pipe thread.
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.
