Обший каталог Yamawa 2016 - 2017 - страница 485

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Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk N-CT FC (for blind hole) Spiral Fluted Taps Carbide Taps for Cast Irons Specification (for through hole) Spiral Fluted Taps ■N-CT FC is the carbide tap suitable for hard and abrasive materials such as cast irons. For volume production. Recommended Tapping Speeds depending on Materials (for through hole) Spiral Pointed Taps Cast irons Ductile cast irons Brass castings 5〜15 5〜15 5〜15 (m/min) (m/min) (m/min) For icon explanation, refer to P.50 Hand Taps TYPE：1 TYPE：2 Carbide Taps Cemented TYPE：3 TYPE：4 Roll Taps Segment：1L Simple Inspection Tools Special Thread Taps Size Class Code Chamfer L ℓ ℓn Ds K ℓk No. of Type Stock Pipe Taps (mm) (mm) (mm) (mm) (mm) (mm) flutes For Metric Threads TCNR1.4C3 3P M1.4 × 0.3 P3 34 7 - 3 2.5 5 3 1 △ TCNR1.4C1 1.5P TCNR1.6D3 3P Thread Mills M1.6 × 0.35 P3 36 8 - 3 2.5 5 3 1 △ TCNR1.6D1 1.5P TCNR1.7D3 3P M1.7 × 0.35 P3 36 8 - 3 2.5 5 3 1 △ TCNR1.7D1 1.5P TCNR2.0E3 3P Dies M2 × 0.4 P3 40 8 - 3 2.5 5 3 1 ○ TCNR2.0E1 1.5P TCNR2.2F3 3P M2.2 × 0.45 P3 42 9.5 - 3 2.5 5 3 1 △ TCNR2.2F1 1.5P TCNR2.3E3 3P M2.3 × 0.4 P3 42 8 - 3 2.5 5 3 1 △ Center Drills TCNR2.3E1 1.5P TCNR2.5F3 3P M2.5 × 0.45 P3 44 9.5 - 3 2.5 5 3 1 △ TCNR2.5F1 1.5P TCNR2.6F3 3P M2.6 × 0.45 P3 44 9.5 - 3 2.5 5 3 1 ○ TCNR2.6F1 1.5P Centering Tools TCNR3.0G3 3P M3 × 0.5 P3 46 11 - 4 3.2 6 3 1 ◎ TCNR3.0G1 1.5P M3 × 0.35 P3 TCNR3.0D3 3P 46 8 - 4 3.2 6 3 1 △ JIS ◎=Standard ○=Semi standard △=Made to order CT-4 For improvement, spec may change without advance notice. 481