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    Din 16742 - Tg5 Jun 2026

    Under DIN 16742, tolerances aren't a single flat number. They depend on the of the part. For a TG5 part:

    : Dimensions formed by a single part of the mold (e.g., within one cavity half). These typically have tighter tolerances.

    | Feature | TG4 (Fine) | TG5 (Very Fine / Precision) | | :--- | :--- | :--- | | | Standard precision | High precision | | Mold cost | Moderate | High (requires hardened steel, 3+ slides) | | Typical application | Snap-fits, enclosures | Gears, bearings, optical housings | | Process window | Wide | Very narrow (requires dry resin, controlled environment) |

    The TG5 specification within DIN 16742 refers to a particular type of tool holder interface. The nomenclature can vary, but TG5 typically denotes a specific design or performance criterion that tool holders must meet. This could involve the geometric accuracy of the tool holder, its balancing class, or its material composition. The exact requirements of TG5 are detailed within the DIN 16742 standard and are designed to ensure compatibility, precision, and reliability in high-speed machining applications.

     

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