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    • ERST Zeta Collet Nuts

    ERST Zeta Collet Nuts offer a great alternative to the standard DIN6499 collet nuts. The Zeta profile on these nuts allow for safer and easier clamping compared to standard ER type spanner wrenches and adapters. Standard DIN6499 collets are 100% exchangeable.

    This ERST system utilizes its own specific operating tools found in this category.

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