
Overall Thread Thread+Neck Shank Shank Size of Length of
length length length length dia. square square
L ℓ ℓn ℓs Ds K ℓk
PO OX STI Spiral Pointed Taps for Helical Coil Wire Screw Thread Inserts, Oxided
L ℓ ℓn ℓs Ds K ℓk No. of
(for blind hole)
Spiral Fluted Taps Spiral Fluted Taps Spiral Pointed Taps
Size Class Code Chamfer Type
(inch) (inch) (inch) (inch) (inch) (inch) (inch) flutes
GH3 PUU07Q3NEX
STI 7/16-14UNC 5P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 3
GH4 PUU07Q4NEX
GH3 PUU07N3NEX
STI 7/16-20UNF 5P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 3
(for through hole)
GH4 PUU07N4NEX
GH3 PUU08R3NEX
STI 1/2-13UNC 5P 4.331 1.024 - 2.205 0.480 0.36 0.562 3 3
GH4 PUU08R4NEX
GH3 PUU08N3NEX
STI 1/2-20UNF 5P 4.331 1.024 - 2.205 0.480 0.36 0.562 3 3
GH4 PUU08N4NEX
(for through hole)
Hand Taps
Carbide Taps
Cemented
Roll Taps
Simple Inspection Tools Pipe Taps
Thread Mills
Dies
Center Drills
Centering Tools
ANSI
PO-18
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