Article no.: 303128

Arbor for indexable drills Form ADB BT 40

Shape ADB
Arbor standard JIS B6339
Arbor standard ISO 7388-2
Machining strategy HPC
Balance quality G at rotational speed G 2.5 at 25,000 rpm

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  • All shanks hard turned.
  • Position of the grub screw 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.


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. 308760 − 308806.

Technical Data

BT 40
Arbor standard
ISO 7388-2; JIS B6339
Balance quality G at rotational speed
G 2.5 at 25,000 rpm
Machining strategy
Type of product
Indexable drill head adapter

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