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Hydraulic chuck, slim Master Chuck 6 mm

Article no.: 302070 6
  • Arbor standard: ISO 7388-1
  • Shape: ADB
  • Through-coolant: yes
  • Balance quality G at rotational speed: G 2.5 at 25,000 rpm
  • Concentricity: ≤ 3

Product details

Technical Data

Clamping ⌀ D1 6 mm
Adapter SK 40 A = 80
Arbor standard ISO 7388-1
Shape ADB
Through-coolant yes
Balance quality G at rotational speed G 2.5 at 25,000 rpm
Concentricity ≤ 3 µm
Machining strategy HPC; HSC
⌀ D2 21 mm
External ⌀ D 27 mm
Balluffchip bore yes
Type of product Hydraulic chuck

Identification numbers & Classifications

Article number 302070 6
EAN / GTIN 4067263265108



  • Slim design (4.5° contour, 1 to 1 shrinking contour according to DIN 69882-8).
  • With RFID/Balluffchip bore.
  • Axial length adjustment, adjustment travel 10 mm.
  • Reducing adapters can be used.
  • Temperature resistant up to 120°C for 4 hours.
  • Allows for up to 10x more clamping operations compared with a standard hydraulic chuck.
  • Very low tightening torque of the clamping screw – easy handling.
  • Patented new hydraulic clamping system – reliable, durable premium concentricity.


Especially for tool and mould making. Wherever reduced interference contours are required. For drilling, reaming and milling. For clamping tools with shank tolerance h6.

Supplied with:

Hexagon socket drive with T-handle.

Optional extras:

Pull studs (AB) No. 308600308806, AB pull stud wrenches No. 308820 / 308835, Reducing sleeves No. 302135302187.

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