Overall Thread Thread+Neck Shank Shank Size of Length of
length length length length dia. square square

L ℓ ℓn ℓs Ds K ℓk


(for blind hole)
Spiral Fluted Taps Spiral Fluted Taps Spiral Pointed Taps
PO OX
Spiral Pointed Taps, Oxided
Specification


(for through hole)
E
Oxide
~M26 M26~
Recommended Tapping Speeds depending on Materials


(for through hole)
Free cutting and Carbon steel and
structural steel low alloy steel
IS P IS P
5 10

5 10

(m/min) (m/min)
For icon explanation, refer to P.50


Hand Taps
TYPE:1 DIN371 TYPE:2 DIN371


Carbide Taps
Cemented
TYPE:3 DIN376 / DIN374 TYPE:4 DIN371


Roll Taps
Simple Inspection Tools
Special Thread Taps
TYPE:5 DIN376 / DIN374 / DIN5156


Pipe Taps
Thread Mills
Dies
Center Drills
Centering Tools


DIN
PO-8
121