ZELX NI PO Spiral Pointed Taps for Nickel Base Alloys
L ℓ ℓn 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) flutes
GH3 Y85505
GH4 Y85524
No.6-32UNC 4.5P 2 0.413 0.687 0.141 0.11 0.187 3 1
GH5 Y85535


(for through hole)
GH7 Y85511
No.6-40UNF GH2 Y85512 4.5P 2 0.413 0.687 0.141 0.11 0.187 3 1
Y85507
GH3
Y85507NI
GH4 Y85529


(for through hole)
Y85537
GH5
No.8-32UNC Y85537NI 4.5P 2.125 0.453 0.75 0.168 0.131 0.25 3 1
Y85560
GH6
Y85560NI


Hand Taps
Y85567
GH7
Y85567NI
GH3 Y85509
No.10-24UNC 4.5P 2.375 0.531 0.875 0.194 0.152 0.25 3 1
GH5 Y85539


Carbide Taps
Cemented
Y85510
GH3
Y85510NI
Y85530
GH4
Y85530NI
Y85540


Roll Taps
No.10-32UNF GH5 4.5P 2.375 0.531 0.875 0.194 0.152 0.25 3 1
Y85540NI
Y85561
GH6
Y85561NI
Y85570


Simple Inspection Tools Pipe Taps
GH7
Y85570NI
Y85513
GH3
Y85513NI
1/4-20UNC 4.5P 2.5 0.591 1 0.255 0.191 0.312 3 2
Y85543
GH5
Y85543NI
GH3 Y85514
Y85531
GH4
Y85531NI
Y85544
Thread Mills
GH5
1/4-28UNF Y85544NI 4.5P 2.5 0.591 1 0.255 0.191 0.312 3 2
Y85562
GH6
Y85562NI
Y85574
Dies

GH7
Y85574NI
GH3 Y85515
5/16-18UNC GH5 Y85545 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3
GH7 Y85553
Center Drills


GH3 Y85516
GH4 Y85532
5/16-24UNF GH5 Y85546 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3
GH6 Y85563
GH7 Y85576
Centering Tools


GH3 Y85517
3/8-16UNC 4.5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3
GH5 Y85547

ANSI
PO-20
247