
Overall Thread Thread+Neck Shank Size of Length of
length length length dia. square square
L ℓ ℓn Ds K ℓk
ZELX AL PO Spiral Pointed Taps for Aluminum
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 Y86209
1/4-28UNF 5P 3.15 0.748 1.181 0.255 0.191 0.312 3 1
GH4 Y86211
GH3 Y86212
5/16-18UNC 5P 3.543 0.866 1.378 0.318 0.238 0.375 3 2
(for through hole)
GH5 Y86213
GH3 Y86214
5/16-24UNF 5P 3.543 0.866 1.378 0.318 0.238 0.375 3 2
GH4 Y86215
GH3 Y86216
3/8-16UNC 5P 3.937 0.945 1.535 0.381 0.286 0.437 3 2
GH5 Y86217
(for through hole)
GH3 Y86218
3/8-24UNF 5P 3.543 0.787 1.535 0.381 0.286 0.437 3 2
GH4 Y86219
GH3 Y86220
7/16-14UNC 5P 3.937 0.945 - 0.323 0.242 0.406 3 3
GH5 Y86221
Hand Taps
GH3 Y86222
7/16-20UNF 5P 3.937 0.945 - 0.323 0.242 0.406 3 3
GH5 Y86223
GH3 Y86224
1/2-13UNC 5P 4.331 1.142 - 0.367 0.275 0.437 3 3
GH5 Y86225
Carbide Taps
Cemented
GH3 Y86226
1/2-20UNF 5P 3.937 0.866 - 0.367 0.275 0.437 3 3
GH5 Y86227
Roll Taps
Simple Inspection Tools Pipe Taps
Thread Mills
Dies
Center Drills
Centering Tools
ANSI
PO-14
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