Article no.: 302237

Shrink-fit chuck with 4 cooling channel bores, nickel-plated SK 40 short

Balance quality G at rotational speed G 2.5 at 25,000 rpm
Machining strategy HSC
Concentricity ≤ 3
Machining strategy HPC
Shape ADB
Arbor standard ISO 7388-1

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  • High-temperature steel.
  • Size 3 -5 for carbide, from size 6 for HSS and carbide.
  • All shanks hard turned (for smooth running!).
  • With Balluffchip bore.

Special nickel plating.
With coolant hole bores tapped for plugging.
coolant hole bores at clamping ⌀ D1: 3, 4 and 5 mm cannot be plugged.


For clamping tools with parallel shank to h6 tolerance.
Suitable for inductive, contact, and hot-air shrink units.

Optional extras:

Pull studs (PS) No. 308600 − 308800. PS wrenches No. 308820 – 308835, Shrink-fit chuck extensions No. 302410 − 302419. Shrink-fit units, accessories No. 354210 − 354450, balancing screws set No. 309906 size 180.

Technical Data

SK 40 short
Arbor standard
ISO 7388-1
Balance quality G at rotational speed
G 2.5 at 25,000 rpm
≤ 3 µm
Machining strategy
Type of product
Shrink-fit chuck

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