BT/MR

Universally suitable different machining applications.
Features and benefits
Features and benefits
MAS 403 / JIS B 6339 / DIN ISO 7388-2

 Total system runout TIR ≤3 μm @ 3 x D

Our holistic system consists of an micRun colletholder, collet and clamping nut. All components together ensure best runout and accuracy.

 Colletholder runout TIR ≤1 μm

Measured from inner taper to outer taper.

 Taper accuracy AT3

Better spindle-to-holder fit and accuracy.

 Surface finish max. Ra 0.25

Achieve high clamping force and high transferable torque.

 Balancing

100% balanced to G 2.5 @ 25,000 rpm/<1gmm.

 MR clamping nut included in delivery

Guarantees highest clamping force and best balancing.

 Vibration dampening

Our holders offer good vibration dampening to sustain a high surface finish and can help prevent chatter.

Expert advice

We recommend tightening the clamping nuts using a torque wrench. The overview of the recommended tightening torque is available for download in the media center.

Get your micRun products

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Filter by properties

Title Form Interface size Norm size Length Style Drawings Part No Compare Get an offer
BT 40 / MR 32 x 100
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Standard 40 32 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5140.13250
BT 40 / MR 25 x 100
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Standard 40 25 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5140.12550
BT 40 / MR 32 x 070
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Standard 40 32 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5140.13230
BT 40 / MR 25 x 070
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Standard 40 25 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5140.12530
BT 40 / MR 16 x 100
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Standard 40 16 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5140.11650
BT 40 / MR 11 x 100
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Standard 40 11 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5140.11150
BT 40 / MR 16 x 070
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Standard 40 16 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5140.11630
BT 30 / MR 25 x 100
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Standard 30 25 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5130.12550
BT 30 / MR 32 x 060
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Standard 30 32 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5130.13220
BT 30 / MR 25 x 060
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Standard 30 25 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5130.12520
BT 30 / MR 16 x 100
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Standard 30 16 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5130.11650
BT 30 / MR 16 x 080
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Standard 30 16 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5130.11640
BT 30 / MR 16 x 050
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Standard 30 16 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5130.11610
BT 30 / MR 11 x 100
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Standard 30 11 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5130.11150
BT 30 / MR 11 x 050
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Standard 30 11 Standard DXF_ISO13399 PDF_ISO13399 STP_DIN4003 XML_DIN4000 5130.11110