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Article no.: 305539

Heavy-duty chuck slim HSK-A 63

Brand: HOLEX
Balance quality G at rotational speed G 6.3 at 15,000 rpm
Shape A
Concentricity ≤ 5
Arbor standard ISO 12164-1
Machining strategy HPC
Arbor standard DIN 69893

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Clamping force up to 150 Nm at ⌀ 12, 300 Nm at ⌀ 16 and 400 Nm at ⌀ 20.
  • Low friction due to needle bearings.
  • Protected with anti-corrosion coating.
  • Dust-tight and watertight.
  • Very high clamping force prolongs tool life and improves surface quality.


Low interference contour due to slim design.


For clamping tools with plain shank.

Supplied with:

Clamping nut.

Optional extras:

Coolant tube No. 309880, collets No. 309566 − 309570 and No. 309575 − 309576, wrench No. 309747 for No. 305539.

Technical Data

HSK-A 63
Arbor standard
ISO 12164-1; DIN 69893
Balance quality G at rotational speed
G 6.3 at 15,000 rpm
≤ 5 µm
Machining strategy
Type of product
Heavy-duty chuck

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