Spiral Fluted Tap Series Overall Chamfer + Thread Thread+Neck Shank Shank Size of Length of length full thread length length length dia. square square L ℓt ℓ ℓn ℓs Ds K ℓk ZEN-B Spiral Fluted Taps for Nickel Base Alloys Spiral Fluted Taps (for blind hole) Size Class Code Chamfer L ℓt ℓ ℓn ℓs Ds K ℓk No. of 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 ● Spiral Fluted Taps (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 ● Spiral Pointed Taps (for through hole) 1/4-28UNF 2BX SDU04KYJPX 3P 80 11 15 30 42 7 5.5 8 3 1 ● 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 Simple Inspection Tools Pipe Taps Thread Mills Dies Center Drills Centering Tools DIN SP-39 90