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MatchMyTools

Accessory calculators

ER11 / ER20 toolholding compatibility check based on shank diameter and the actual collet used.

Calculators in this category

Enter only values verified in your machine and tool documentation.

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ER11 / ER20 toolholding compatibility

Check whether the shank diameter is within the general range of the selected system, then confirm that you have a collet explicitly rated for that diameter.

Important limits

These calculators provide mathematical checks and starting points. They never replace manufacturer data, mounting verification, guards or conservative testing.