
Spiral Fluted Tap Overall
length
L
Thread
length
ℓ
Thread+Neck
length
ℓn
Shank
length
ℓs
Shank
dia.
Ds
Size of
square
K
Length of
square
ℓk
SP STI Spiral Fluted Taps for Helical Coil Wire Screw Thread Inserts
L ℓ ℓn ℓs Ds K ℓk No. of
Spiral Pointed Taps Spiral Fluted Taps Spiral Fluted Taps
(for blind hole)
Size Class Code Chamfer Type
(inch) (inch) (inch) (inch) (inch) (inch) (inch) flutes
GH2 SUU06M2NEB
STI 3/8-24UNF 2P 3.937 0.906 - 2.008 0.323 0.242 0.406 3 3
GH3 SUU06M3NEB
GH2 SUU07Q2NEB
STI 7/16-14UNC 2P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 3
(for through hole)
GH3 SUU07Q3NEB
GH2 SUU07N2NEB
STI 7/16-20UNF 2P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 3
GH3 SUU07N3NEB
GH2 SUU08R2NEB
STI 1/2-13UNC 2P 4.331 1.024 - 2.205 0.480 0.36 0.562 3 3
GH3 SUU08R3NEB
(for through hole)
GH2 SUU08N2NEB
STI 1/2-20UNF 2P 4.331 1.024 - 2.205 0.480 0.36 0.562 3 3
GH3 SUU08N3NEB
Hand Taps
Cemented
Carbide Taps Roll Taps
Pipe Taps Simple Inspection Tools
Thread Mills
Dies
Center Drills
Centering Tools
ANSI
SP-23
210