Setting Rings Specifications Delivered Without certificate of inspection Series 177 - Metric Type • Used for quick and accurate setting of 2-Point Inside Measuring Instruments and 2-Point/3-Point Inside Micrometers • Nominal diameter is marked in 0,001 mm increments • Steel Setting Rings are available from 1 mm up to 300 mm and Ceramic Setting Rings from 4 mm up to 45 mm 177-424 177-432 177-139 177-300 T øE 25.4 ød øD T ød øD K H (H) K H (H) Side face (Marking face) Side face Side face Side face (Marking face) Diameter calibrated at this position Marking Marking Type A Type B Metric Ceramic No. Nominal size ød [mm] Type D [mm] T [mm] Tolerance nominal size / marked diameter [μm] Uncertainty of marked diameter [μm] Roundness / Cylindricity [μm] H [mm] Warranted calibration surface K [mm] 177-418 4 A 25 7 ±10 1,5 1 1.7 3.6 177-420 6 A 25 7 ±10 1,5 1 1.7 3.6 177-423 8 A 32 10 ±10 1,5 1 2.0 6.0 177-424 10 A 32 10 ±10 1,5 1 2.0 6.0 177-425 12 A 32 10 ±10 1,5 1 2.0 6.0 177-427 16 A 45 10 ±10 1,5 1 2.0 6.0 177-429 20 A 45 10 ±10 1,5 1 2.0 6.0 177-430 25 A 53 15 ±10 1,5 1 3.2 8.6 177-431 30 A 71 15 ±10 1,5 1 3.2 8.6 177-432 35 A 71 15 ±10 1,5 1 3.2 8.6 177-433 40 A 71 15 ±10 1,5 1 3.2 8.6 177-434 45 A 85 15 ±10 1,5 1 3.7 7.6 All products to be sold to commercial customers. Product illustrations are without obligation. Product descriptions, in particular any and all technical specifications, are only binding when explicitly agreed upon. 163
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