Steep taper colletholders BT

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

 Runout TIR ≤3 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.

 XL colletholders

100 % balanced to G 2.5 @ 5,000 rpm.

Runout TIR ≤10 μm

 Hi-Q balancing system

Ready to accept Hi-Q balancing rings which allow for the offset of the imbalance introduced by the cutting tool up to 80,000 rpm depending on the balancing rings used. All colletholders with the additional type information “H” in the article name are designed for balancing rings.

 Hi-Q / ER 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.

 

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Filter by properties

Title Form Interface size Norm size Length Style Drawings Part No Compare Get an offer
BT+ 50 / ER 32 x 100 H
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Plus + 50 32 Standard PDF DXF STEP 4150.13256
BT+ 50 / ER 32 x 160 H
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Plus + 50 32 Standard PDF DXF STEP 4150.13286
BT+ 40 / ER 32 x 100 H
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Plus + 40 32 Standard PDF DXF STEP 4140.13256
BT+ 40 / ER 32 x 160 H
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Plus + 40 32 Standard PDF DXF STEP 4140.13286
BT+ 40 / ER 25 x 070 H
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Plus + 40 25 Standard PDF DXF STEP 4140.12536
BT+ 40 / ER 32 x 070 H
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Plus + 40 32 Standard PDF DXF STEP 4140.13236
BT+ 40 / ER 16 x 100 H
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Plus + 40 16 Standard PDF DXF STEP 4140.11656
BT+ 40 / ER 20 x 070 H
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Plus + 40 20 Standard PDF DXF STEP 4140.12036
BT+ 30 / ER 32 x 060
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Plus + 30 32 Standard PDF DXF STEP 2130.13226
BT+ 40 / ER 16 x 070 H
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Plus + 40 16 Standard PDF DXF STEP 4140.11636
BT+ 30 / ER 25 x 060 H
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Plus + 30 25 Standard PDF DXF STEP 4130.12526
BT+ 30 / ER 20 x 050
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Plus + 30 20 Standard PDF DXF STEP 2130.12016
BT+ 30 / ER 20 x 070 H
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Plus + 30 20 Standard PDF DXF STEP 4130.12036
BT+ 30 / ER 16 x 050
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Plus + 30 16 Standard PDF DXF STEP 2130.11616
BT+ 30 / ER 16 x 080 H
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Plus + 30 16 Standard PDF DXF STEP 4130.11646
BT-OM 30 / ERA 20 x 022
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OM 30 20 Short PDF DXF STEP 2130.12008
BT+ 30 / ER 11 x 100 H
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Plus + 30 11 Standard PDF DXF STEP 4130.11156
BT-OM 30 / ER 25 x 060 H
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OM 30 25 Standard PDF DXF STEP 4130.12528
BT-OM 30 / ER 32 x 060
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OM 30 32 Standard PDF DXF STEP 2130.13228
BT-B 50 / ER 40 x 160 H
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B 50 40 Standard PDF DXF STEP 4150.14083
BT-OM 30 / ER 16 x 080 H
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OM 30 16 Standard PDF DXF STEP 4130.11648
BT-B 50 / ER 40 x 100 H
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B 50 40 Standard PDF DXF STEP 4150.14053
BT-B 50 / ER 32 x 100 H
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B 50 32 Standard PDF DXF STEP 4150.13253
BT-B 50 / ER 32 x 160 H
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B 50 32 Standard PDF DXF STEP 4150.13283
BT-B 50 / ER 25 x 100 H
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B 50 25 Standard PDF DXF STEP 4150.12553
BT-B 50 / ER 25 x 160 H
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B 50 25 Standard PDF DXF STEP 4150.12583
BT-B 50 / ER 20 x 100 H
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B 50 20 Standard PDF DXF STEP 4150.12053
BT-B 50 / ER 25 x 070
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B 50 25 Standard PDF DXF STEP 2150.12533
BT-B 50 / ER 16 x 160 H
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B 50 16 Standard PDF DXF STEP 4150.11683
BT-B 50 / ER 20 x 070
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B 50 20 Standard PDF DXF STEP 2150.12033
BT 50 / ER 50 x 100
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Standard 50 50 Standard PDF DXF STEP 2150.15050
BT-B 50 / ER 16 x 100 H
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B 50 16 Standard PDF DXF STEP 4150.11653
BT 50 / ER 40 x 100 H
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Standard 50 40 Standard PDF DXF STEP 4150.14050
BT 50 / ER 40 x 160 H
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Standard 50 40 Standard PDF DXF STEP 4150.14080
BT 50 / ER 32 x 240 XL
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Standard 50 32 XL PDF DXF STEP 8851.16070
BT 50 / ER 32 x 340 XL
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Standard 50 32 XL PDF DXF STEP 8851.16170
BT 50 / ER 32 x 160 H
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Standard 50 32 Standard PDF DXF STEP 4150.13280
BT 50 / ER 32 x 200 H
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Standard 50 32 Standard PDF DXF STEP 4150.13290
BT 50 / ER 32 x 100 H
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Standard 50 32 Standard PDF DXF STEP 4150.13250
BT 50 / ER 25 x 100 H
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Standard 50 25 Standard PDF DXF STEP 4150.12550
BT 50 / ER 25 x 160 H
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Standard 50 25 Standard PDF DXF STEP 4150.12580
BT 50 / ER 25 x 070
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Standard 50 25 Standard PDF DXF STEP 2150.12530
BT 50 / ER 20 x 100 H
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Standard 50 20 Standard PDF DXF STEP 4150.12050
BT 50 / ER 16 x 400 XL
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Standard 50 16 XL PDF DXF STEP 8851.13230
BT 50 / ER 20 x 070
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Standard 50 20 Standard PDF DXF STEP 2150.12030
BT 50 / ER 16 x 340 XL
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Standard 50 16 XL PDF DXF STEP 8851.13170
BT 50 / ER 16 x 360 XL
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Standard 50 16 XL PDF DXF STEP 8851.13190
BT 50 / ER 16 x 260 XL
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Standard 50 16 XL PDF DXF STEP 8851.13090
BT 50 / ER 16 x 300 XL
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Standard 50 16 XL PDF DXF STEP 8851.13130
BT 50 / ER 16 x 160 H
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Standard 50 16 Standard PDF DXF STEP 4150.11680
BT 50 / ER 16 x 240 XL
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Standard 50 16 XL PDF DXF STEP 8851.13070
BT-B 40 / ER 40 x 160 H
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B 40 40 Standard PDF DXF STEP 4140.14083
BT 50 / ER 16 x 100 H
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Standard 50 16 Standard PDF DXF STEP 4150.11650
BT-B 40 / ER 40 x 080
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B 40 40 Standard PDF DXF STEP 2140.14043
BT-B 40 / ER 40 x 100 H
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B 40 40 Standard PDF DXF STEP 4140.14053
BT-B 40 / ER 32 x 100 H
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B 40 32 Standard PDF DXF STEP 4140.13253
BT-B 40 / ER 32 x 160 H
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B 40 32 Standard PDF DXF STEP 4140.13283
BT-B 40 / ER 32 x 070 H
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B 40 32 Standard PDF DXF STEP 4140.13233
BT-B 40 / ER 25 x 160 H
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B 40 25 Standard PDF DXF STEP 4140.12583
BT-B 40 / ER 25 x 070 H
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B 40 25 Standard PDF DXF STEP 4140.12533
BT-B 40 / ER 25 x 100 H
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B 40 25 Standard PDF DXF STEP 4140.12553
BT-B 40 / ER 20 x 100 H
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B 40 20 Standard PDF DXF STEP 4140.12053
BT-B 40 / ER 20 x 160 H
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B 40 20 Standard PDF DXF STEP 4140.12083
BT-B 40 / ER 16 x 160 H
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B 40 16 Standard PDF DXF STEP 4140.11683
BT-B 40 / ER 20 x 070 H
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B 40 20 Standard PDF DXF STEP 4140.12033
BT-B 40 / ER 16 x 070 H
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B 40 16 Standard PDF DXF STEP 4140.11633
BT-B 40 / ER 16 x 100 H
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B 40 16 Standard PDF DXF STEP 4140.11653
BT 40 / ER 40 x 100 H
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Standard 40 40 Standard PDF DXF STEP 4140.14050
BT 40 / ER 40 x 160 H
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Standard 40 40 Standard PDF DXF STEP 4140.14080
BT 40 / ER 32 x 326 XL
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Standard 40 32 XL PDF DXF STEP 8841.16150
BT 40 / ER 40 x 080
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Standard 40 40 Standard PDF DXF STEP 2140.14040
BT 40 / ER 32 x 160 H
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Standard 40 32 Standard PDF DXF STEP 4140.13280
BT 40 / ER 32 x 226 XL
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Standard 40 32 XL PDF DXF STEP 8841.16050
BT 40 / ER 32 x 100 H
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Standard 40 32 Standard PDF DXF STEP 4140.13250
BT 40 / ER 32 x 070 H
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Standard 40 32 Standard PDF DXF STEP 4140.13230
BT 40 / ERA 32 x 27
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Standard 40 32 Short PDF DXF STEP 2140.13207
BT 40 / ER 25 x 100 H
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Standard 40 25 Standard PDF DXF STEP 4140.12550
BT 40 / ER 25 x 160 H
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Standard 40 25 Standard PDF DXF STEP 4140.12580
BT 40 / ER 20 x 160 H
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Standard 40 20 Standard PDF DXF STEP 4140.12080
BT 40 / ER 25 x 070 H
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Standard 40 25 Standard PDF DXF STEP 4140.12530
BT 40 / ER 20 x 070 H
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Standard 40 20 Standard PDF DXF STEP 4140.12030
BT 40 / ER 20 x 100 H
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Standard 40 20 Standard PDF DXF STEP 4140.12050
BT 40 / ER 16 x 360 XL
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Standard 40 16 XL PDF DXF STEP 8841.13190
BT 40 / ER 16 x 400 XL
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Standard 40 16 XL PDF DXF STEP 8841.13230
BT 40 / ER 16 x 300 XL
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Standard 40 16 XL PDF DXF STEP 8841.13130
BT 40 / ER 16 x 320 XL
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Standard 40 16 XL PDF DXF STEP 8841.13150
BT 40 / ER 16 x 260 XL
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Standard 40 16 XL PDF DXF STEP 8841.13090
BT 40 / ER 16 x 160 H
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Standard 40 16 Standard PDF DXF STEP 4140.11680
BT 40 / ER 16 x 220 XL
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Standard 40 16 XL PDF DXF STEP 8841.13050
BT 40 / ER 16 x 100 H
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Standard 40 16 Standard PDF DXF STEP 4140.11650
BT 40 / ER 16 x 070 H
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Standard 40 16 Standard PDF DXF STEP 4140.11630
BT 40 / ER 11 x 160 H
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Standard 40 11 Standard PDF DXF STEP 4140.11180
BT 30 / ER 32 x 100 H
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Standard 30 32 Standard PDF DXF STEP 4130.13250
BT 40 / ER 11 x 100 H
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Standard 40 11 Standard PDF DXF STEP 4140.11150
BT 30 / ER 25 x 100 H
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Standard 30 25 Standard PDF DXF STEP 4130.12550
BT 30 / ER 32 x 060
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Standard 30 32 Standard PDF DXF STEP 2130.13220
BT 30 / ER 20 x 100 H
get details
Standard 30 20 Standard PDF DXF STEP 4130.12050
BT 30 / ER 25 x 060 H
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Standard 30 25 Standard PDF DXF STEP 4130.12520
BT 30 / ER 20 x 050
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Standard 30 20 Standard PDF DXF STEP 2130.12010
BT 30 / ER 20 x 070 H
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Standard 30 20 Standard PDF DXF STEP 4130.12030
BT 30 / ER 16 x 100 H
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Standard 30 16 Standard PDF DXF STEP 4130.11650
BT 30 / ERA 20 x 022
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Standard 30 20 Short PDF DXF STEP 2130.12007
BT 30 / ER 16 x 050
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Standard 30 16 Standard PDF DXF STEP 2130.11610
BT 30 / ER 16 x 080 H
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Standard 30 16 Standard PDF DXF STEP 4130.11640
BT 30 / ER 11 x 050
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Standard 30 11 Standard PDF DXF STEP 2130.11110
BT 30 / ER 11 x 100 H
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Standard 30 11 Standard PDF DXF STEP 4130.11150

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