Article no.: 301285

Arbor for indexable drills Form ADB SK 40

Balance quality G at rotational speed G 2.5 at 25,000 rpm
Shape ADB
Arbor standard ISO 7388-1

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  • Position of the threaded pin for countersinking in the indexable drill offset by 0.4 mm.
  • When tightening the increased contact face ⌀ is clamped against the front face of the arbor.
  • Better support, allowing higher feed rates.
  • High concentricity thanks to the mating surface being ground flat to 3µm.
  • With Balluffchip bore.


For mounting all standard indexable drills to DIN 6595, Part 1.

Suitable for:

All indexable drills with parallel shank to DIN 6595, Part 1.

Optional extras:

Pull studs (PS) No. 308600 − 308806, PS wrenches No. 308820 – 308835, replacement screws No. 309907, 309908.

Technical Data

SK 40
Arbor standard
ISO 7388-1
Balance quality G at rotational speed
G 2.5 at 25,000 rpm
Type of product
Indexable drill head adapter

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