
Spiral Fluted Tap Series Overall
length
L
Chamfer +
full thread
ℓt
Thread
length
ℓ
Thread+Neck
length
ℓn
Shank
length
ℓs
Shank
dia.
Ds
Size of
square
K
Length of
square
ℓk
ZEN-B Spiral Fluted Taps for Nickel Base 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 SDUN4HYJPX 3P 56 5 9 18 34 3.5 2.7 6 3 1 ●
NO.6-32UNC 2BX SDUN6JYJPX 3P 56 7 11 19 32 4 3 6 3 1 ●
●
(for through hole)
NO.8-32UNC 2BX SDUN8JYJPX 3P 63 7 13 21 38 4.5 3.4 6 3 1
NO.10-24UNC 2BX SDUNAMYJPX 3P 70 9 14 24 39 6 4.9 8 3 1 ●
NO.10-32UNF 2BX SDUNAJYJPX 3P 70 9 14 24 39 6 4.9 8 3 1 ●
1/4-20UNC 2BX SDU04NYJPX 3P 80 11 15 30 42 7 5.5 8 3 1 ●
1/4-28UNF 2BX SDU04KYJPX 3P 80 11 15 30 42 7 5.5 8 3 1 ●
(for through hole)
5/16-18UNC 2BX SDU05OYJPX 3P 90 - 12 35 47 8 6.2 9 3 2 ●
5/16-24UNF 2BX SMU05MYJPX 3P 90 - 12 - 46 6 4.9 8 3 3 ●
3/8-16UNC 2BX SDU06PYJPX 3P 100 - 13 39 54 9 7 10 3 2 ●
3/8-24UNF 2BX SMU06MYJPX 3P 100 - 13 - 51 7 5.5 8 3 3 ●
Hand Taps
7/16-20UNF 2BX SMU07NYJPX 3P 100 - 13 - 51 8 6.2 9 3 3 ●
1/2-13UNC 2BX SGU08RYJPX 3P 110 - 15 - 56 9 7 10 3 4 ●
1/2-20UNF 2BX SMU08NYJPX 3P 100 - 15 - 51 9 7 10 3 3 ●
9/16-18UNF 2BX SMU09OYJPX 3P 100 - 14 - 51 11 9 12 3 3 ●
●
Cemented
Carbide Taps
5/8-11UNC 2BX SGU10UYJPX 3P 110 - 18 - 56 12 9 12 3 4
5/8-18UNF 2BX SMU10OYJPX 3P 100 - 14 - 51 12 9 12 3 3 ●
3/4-10UNC 2BX SGU12VYJPX 3P 125 - 20 - 64 14 11 14 4 4 ●
3/4-16UNF 2BX SMU12PYJPX 3P 110 - 14 - 56 14 11 14 4 3 ●
Roll Taps
Special Thread Taps
Pipe Taps Simple Inspection Tools Thread Mills
Dies
Center Drills
Centering Tools
DIN
SP-39
90