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 ZET-B Spiral Fluted Taps for Titanium 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 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 ● Spiral Fluted Taps (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 ● Spiral Pointed Taps (for through hole) 1/4-20UNC 2BX SDU04NYIPN 3P 80 11 15 30 42 7 5.5 8 3 1 ● 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 Simple Inspection Tools Pipe Taps Thread Mills Dies Center Drills Centering Tools DIN SP-41 92