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Article no.: 305531

HiRunER precision ER collet chuck HSK-A 100 short

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

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External and internal tapers are ground. All shanks are hard turned for a smooth cutting action. Including Balluffchip bore, high-performance clamping nut up to 25000 rpm.


  • Excellent concentricity in the system (chuck + collet + clamping nut), 3 µm radial run-out with a 2 µm collet, 6 µm radial run-out with a 5 µm collet.
  • Extremely strong holding force (up to factor 2better than the standard ER chuck).
  • Vibration reduction effect due to 2-part clamping nut (one part for mini version).


For clamping tools with plain shank in collets to DIN 6499 - Form A and B.

Supplied with:

Precision clamping nut.

Optional extras:

Coolant pipe No. 309880,
socket wrench No. 309890,
ER clamping wrenches No. 309748; 309749; 309757; 309758,
Fahrion ER collets No. 308901 − 309434.


  • Clamps only nominal ⌀ up to shank ⌀ tolerance h 10.
  • Do not use the clamping nut in combination with a sealing washer.
  • Use the precision collet chuck always in conjunction with the precision clamping nut No. 309617; 309618.
  • Use in combination with Fahrion collets.

Technical Data

HSK-A 100 short
Arbor standard
DIN 69893; ISO 12164-1
Balance quality G at rotational speed
G 2.5 at 25,000 rpm
≤ 3 µm
Machining strategy
Balluffchip bore
Type of product
Collet chuck

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