TECHNICAL INFORMATION

Terminology of Taps 1.Technical-1Bar diameter of external threads 18.Technical-50
Flutes 2.Technical-2(for thread rolling dies)
Edge angle and Cutting allowance of taps 3.Technical-3Surface Treatment 19.Technical-51
Recommended Tapping Speeds 4.Technical-4Carbide Taps 20.Technical-54
Tapping speed and Revolution 5.Technical-5Taps for Pipe Threads 21.Technical-56
Tapping Torque 6.Technical-6Features of MC-Helical Thread Mills 22.Technical-65
Metric Thread and Gauge Profile 7.Technical-9Selecting different tap holder combinations by machine feed system 23.Technical-69
Length of engagement 8.Technical-11The mechanism for a tap to cut oversize 24.Technical-71
Classes of Internal Threads and Classes 9.Technical-13on an internal thread
of Cutting TapsTrouble Shooting 25.Technical-73
About UNJ Threads 10.Technical-17Center Drills 26.Technical-77
Accuracy of external threads and accuracy of Dies 11.Technical-18Table of recommend centering condition 27.Technical-78
Guide to Thread Forming Taps (Roll Taps) 12.Technical-19Thread Series i 28.Technical-80
How to set the tap's oversize to meet with 13.Technical-21Basicprofile of threads 29.Technical-82
the coating margin of internal threadsSymbols for Standard Threads 30.Technical-85
Tap, Thread Limits 14.Technical-23Cross chart of thread cutting tool standard 31.Technical-88
Bored hole size before tapping 15.Technical-35Hardness conversion table 32.Technical-89
( for thread cutting )Conversion table from inch to millimeter 33.Technical-90
Bored hole size before tapping ( for thread forming ) 16.Technical-45Materials used for Cutting Tools 34.Technical-91
Bar diameter for external threads (for cutting type dies) 17.Technical-47