Spiral Fluted Taps (for blind hole)Spiral Fluted Taps(for through hole)Spiral Pointed Taps(for through hole)Hand TapsCementedCarbide TapsRoll TapsSpecial Thread TapsSimple Inspection ToolsPipe TapsThread MillsPremium Thread MillsDiesCenter DrillsCentering Tools JIS ⑦ Special Thread Taps / Simple Inspection Tools Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk JIS ① HT CTG Hand Taps for Thick Steel Conduit Threads ② Specification ■Tap for thick steel conduit threads. Thread angle is 55 degree and the thread symbol is CTG. ③ Recommended Tapping Speeds depending on Materials Low carbon steels Medium carbon steels High carbon steels 低炭素鋼 中炭素鋼 高炭素鋼 〜10 〜10 〜10 ④ (m/min) (m/min) (m/min) TYPE:1 ⑤ Segment:1A ⑥ Size Code BasicChamfermajordia(mm)L(mm)ℓ(mm) ℓn(mm) ℓs(mm) Ds(mm) K(mm) ℓk(mm) No. offlutesTYPE MSRP For Thick Steel Conduit Threads CTG16-14 TYCG160HEB5 5P 20.955 115 25 - 55 17 13 16 4 1 ¥20,600 □ CTG22-14 TYCG220HEB5 5P 26.441 130 26 - 60 20 15 18 4 1 ¥29,100 □ ⑦ CTG28-11 TYCG280HEB5 5P 33.249 155 31 - 71 28 21 24 4 1 ¥48,800 □ CTG36-11 TYCG360HEB5 5P 41.910 180 33 - 83 35 26 30 4 1 ¥78,600 □ CTG42-11 TYCG420HEB5 5P 47.803 185 34 - 85 38 29 32 4 1 ¥87,400 □ ⑧ ■ For Thick Steel Conduit Threads unit: mm ■ Bored hole size unit: mm Pitch Diameter Minor DiameterSize Size Minor Diameter of Internal Thread(D1) Bored Hole SizeMax.Min.(Reference) Basic Size Basic Size CTG 16 - 14 19.522 19.022 19.4 CTG 16 - 14 19.793 18.922⑨CTG22 - 1425.27924.408 CTG 22 - 14 25.008 24.508 24.9CTG28-1131.36130.76131.2 CTG 28 - 11 31.770 30.661 CTG 36 - 11 40.022 39.422 39.9 CTG 36 - 11 40.431 39.322 CTG 42 - 11 45.915 45.315 45.8 CTG 42 - 11 46.324 45.215 ⑩ ⑪ JIS ⑦-37 ※ = Specified Distribution Items. Made to order products. □=In stock at manufacturer.