Designed for rotating applications, all our ER ATC colletholders are suited for micro applications where consistent performance is key.
Features and benefits
Features and benefits

Highest precision standards

Achieving best results due to perfect runout

Surface finish max. Ra 0.25

Achieve high clamping force and high transferable torque.


All holders are fine-balanced

Designed for micro machines

Highest precision for the watchmaking and medical industry

Clamping nut included in delivery

Guarantees highest clamping force and best balancing.

Vibration dampening

Our holders offer a good vibration dampening to sustain a high surface finish and can prevent cutting force alterations.

Matched tooling system for best fit

For highest precision and best results the entire machining system counts. Therefore our components are carefully matched for optimum fit and accuracy. This guarantees the best runout and balance.

Filter by properties

Title Form Interface size Norm size Length Style Drawings Part No Compare Get an offer
ATC-E 15 / SR 6 x 022
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E 15 6 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5915.20600
ATC-E 15 / ERMS 11 x 024
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E 15 11 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 2915.11100
ATC-E 15 / ERMS 8 x 021
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E 15 8 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 2915.10800