Article no.: 304981 1-6

Collet chuck, extra slim, with internal cooling 1-6 mm

Arbor standard DIN 69893
Arbor standard ISO 12164-1
Concentricity ≤ 3
Machining strategy HSC
Balance quality G at rotational speed G 2.5 at 25,000 rpm
Shape A

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  • HSK mating faces machined.
  • Shanks hard turned.
  • With Balluffchip bore.
  • The collet is clamped by a threaded connection from behind through the chuck, no clamping nut required.


Large working range and optimised contour for reduced vibration. Cooling with the collet by the tool or along the shank.
Extremely slim design permits machining of components where access is difficult, e.g. for toolmaking and mould-making.


For clamping tools with plain shank to DIN 6499.

Supplied with:

Clamping screw and wrench with T-handle.

Optional extras:

ALBRECHT collets No. 309572 and 309573.
Plug-in socket No. 309890, GARANT collets No. 309563.

Technical Data

Clamping range
1 mm - 6 mm
HSK-E 40 A = 75
Arbor standard
ISO 12164-1; DIN 69893
Balance quality G at rotational speed
G 2.5 at 25,000 rpm
≤ 3 µm
Machining strategy
Overhang dimension A
75 mm
⌀ D1
10.1 mm
⌀ D2
13.5 mm
External ⌀ D
44 mm
Balluffchip bore
Usable length LN
35 mm
Type of product
Collet chuck

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