Общий каталог Yamawa 2021 - страница 644

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D1 D2 D D2 minD2 maxD2 t 0 .1t 0.3 t 0.5 t 0.7 t 8. Internal Thread Tolerance and Classes of Taps Intro DIN EN 22857 DIN 802 Internal thread tolerance range SP Denomination Characteristic Class 1 ISO 1 4H 4H 5H - - - Class 2 ISO 2 6H 4G 5G 6H - - Class 3 ISO 3 6G - - 6G 7H 8H SL - - 7G - - - 7G 8G ISO PO 8H ST 7H 6G 6H 5G 5H 4G ROLL 4H 7H 6H 4H CARBIDE Basic pitch diameter LONG YAMAWA P CLASS HAND TAPS P: ≤0.6 mm P: ≥0.7 mm μm Tol.: 15 μ μm Tol.: 20 μ EG (STI) 85 P5 100 70 P455 P580P4 SPECIALTHREADS, P3 60 GAUGES 40 P3 P2 40 25 P2 P110 20 THREADP1 Basic pitch diameter Basic pitch diameter MILLS DIES ISO2X (6HX) ISO3X (6GX) CENTER p = 0.20 mm ~ 0.7 mm x = +15 μ DRILLS p = 0.75 mm ~ 1.0mm x = +20 μ p = 1.25 mm ~ 2.5 mm x = +25 μ p = 2.50 mm ~ x = +30 μ Technical info 645