Skip to content
Structured technical data Technical guides Help center
United States (USD) 🇺🇸 US 🇫🇷 FR
ToolSelector

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.

All categories

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.