Spiral Fluted Tap Series Overall
length
L
Chamfer +
full thread
ℓt
Thread
length

Thread+Neck
length
ℓn
Shank
length
ℓs
Shank
dia.
Ds
Size of
square
K
Length of
square
ℓk
ZET-B Spiral Fluted Taps for Titanium Alloys
L ℓt 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 Stock
(mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes
For Unified Threads
NO.4-40UNC 2BX SDUN4HYIPN 3P 56 5 9 18 34 3.5 2.7 6 3 1 ●
NO.6-32UNC 2BX SDUN6JYIPN 3P 56 7 11 19 32 4 3 6 3 1 ●

(for through hole)


NO.6-40UNF 2BX SDUN6HYIPN 3P 56 7 11 19 32 4 3 6 3 1
NO.8-32UNC 2BX SDUN8JYIPN 3P 63 7 13 21 38 4.5 3.4 6 3 1 ●
NO.10-24UNC 2BX SDUNAMYIPN 3P 70 9 14 24 39 6 4.9 8 3 1 ●
NO.10-32UNF 2BX SDUNAJYIPN 3P 70 9 14 24 39 6 4.9 8 3 1 ●
1/4-20UNC 2BX SDU04NYIPN 3P 80 11 15 30 42 7 5.5 8 3 1 ●
(for through hole)


1/4-28UNF 2BX SDU04KYIPN 3P 80 11 15 30 42 7 5.5 8 3 1 ●
5/16-18UNC 2BX SDU05OYIPN 3P 90 - 12 35 47 8 6.2 9 3 2 ●
5/16-24UNF 2BX SMU05MYIPN 3P 90 - 12 - 46 6 4.9 8 3 3 ●
3/8-16UNC 2BX SDU06PYIPN 3P 100 - 13 39 54 9 7 10 3 2 ●
Hand Taps


3/8-24UNF 2BX SMU06MYIPN 3P 100 - 13 - 51 7 5.5 8 3 3 ●
1/2-13UNC 2BX SGU08RYIPN 3P 110 - 15 - 56 9 7 10 3 4 ●
1/2-20UNF 2BX SMU08NYIPN 3P 100 - 15 - 51 9 7 10 3 3 ●
5/8-11UNC 2BX SGU10UYIPN 3P 110 - 18 - 56 12 9 12 4 4 ●

Cemented
Carbide Taps


3/4-10UNC 2BX SGU12VYIPN 3P 125 - 20 - 64 14 11 14 4 4
Roll Taps
Special Thread Taps
Pipe Taps Simple Inspection Tools Thread Mills
Dies
Center Drills
Centering Tools


DIN
SP-41
92