Article no.: 300475

ER collet chuck Form AD SK 40 A = 70

Brand: HOLEX
Shape AD
Balance quality G at rotational speed G 6.3 at 18,000 rpm<sup></sup>
Machining strategy HSC
Concentricity ≤ 3
Arbor standard ISO 7388-1

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Taper ground internally and externally. With Balluffchip bore.
HOLEX precision clamping nut, balanced (G6.3 / 18,000 rpm, all shanks fine bead blasted. Balancing quality G6.3 / 18,000 rpm).


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

Supplied with:

Clamping nut.

Optional extras:

Pull studs (PS) No. 308600 − 308806, PS pull stud wrenches No.308820 − 308835, ER chuck key No. 309680 − 613300, ER collets No. 308901 − 309449, ER clamping nuts No. 309615 (for sealing rings), sealing rings No. 309625 − 309645 (for No. 309615).

Technical Data

SK 40 A = 70
Arbor standard
ISO 7388-1
Balance quality G at rotational speed
G 6.3 at 18,000 rpm
≤ 3 µm
Machining strategy
Balluffchip bore
Type of product
Collet chuck

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