Общий каталог PRECITOOL - страница 669

Micrometers Thread wires Product information for precision external micrometers Design: The holder for the spindle is equipped with a meas- Please observe the spindle diameter. uring wire, the holder for the anvil is equipped with two measuring wires. This gauge block serves for = 6.35 mm the required broadening of the micrometer´s meas- = 6.50 mm uring face (subtract 3 mm from the result). = 7.50 mm Thread-Inserts are delivered in pairs. = 8.00 mm Use: For measuring external threads. The flank diameter is determined by the three-wire method. Delivery: In case. Prices on request. Size = Metric thread Whitworth thread U.S. standard thread Trapezoidal thread thread wire x DIN 13 DIN 11, 239, 240, 259 (UNC, UNF) DIN 103, 378, 379 (coarse and fine threads) (BSW, BSF, BSP) D thread pitch P number of threads per 1" number of threads per 1“ pitch h mm mm mm 0.17 0.25 0.30 — — — 0.195 — — 80 — 0.22 0.35 — 72 — 31 0.25 0.40 — 64 — 0.29 0.45 0.50 — 56 — 0.335 0.60 — 48 — 0.39 — 40 44 40 — 0.455 0.70 0.75 0.80 32 36 — 0.53 0.90 28 32 28 — 0.62 1.00 26 24 24 — 0.725 1.25 22 20 20 — 0.895 1.50 19 16 18 — 1.10 1.75 14 13 2 1.35 2.00 12 11 12 11 — 1.65 2.50 10  9 10  9 3 2.05 3.00 3.50  8  7  8  7 4 2.55 4.00 4.50  6  6 5 3.20 5.00 5.50  5  4½  5  4½ 6 4.00 6.00  4  3½  4 7 31/664 www.precitool.de