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Torque Adapter 0.1 Nm for 4 mm C4 Bits with Hex Shank - Bernstein 4-971

Bernstein ✓ Original product Brand new Made in Taiwan

The 4-971 torque adapter is factory set to a fixed 0.1 Nm and stays within +/-10% tolerance for at least 20,000 clicks. It clamps between any standard holding tool and a 4 mm C4 bit, making it suited to precise tightening of the smallest screws in electronics manufacturing.

Net
€24.30
excl. VAT
Item BS-4-971
Manufacturer no. 4-971
Question about this item
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  • Invoice payment for regular customers
  • Worldwide shipping
  • Technical questions clarified with the manufacturer

Description

Where a single, repeatable torque step is required, one adapter is enough instead of a full set. The 4-971 torque adapter is fixed at 0.1 Nm and clamps between a holding tool and a 4 mm C4 bit.

Benefits

  • Fixed preset tightening torque 0.1 Nm, tolerance +/-10%, for at least 20,000 clicks.
  • Fits any standard holder with a 4 mm hex socket.
  • A click signals when the torque is reached, the adapter cannot be overtightened.
  • No torque release when loosening, giving up to 30% higher breakaway torque without extra tools.
  • Compact design at 32 mm overall length and 7.5 g weight, barely noticeable on the tool.

Application

  • Fine assembly and repair of electronic devices with a specified tightening torque.
  • Quick change systems and robotic stations requiring a recurring fixed torque.
  • Manual operation preferred, with power tools max. 100 rpm and minimal click repetition.

Standards and Delivery Data

  • Adapter tested to DIN EN ISO 6789
  • EAN 4250838525480
  • Customs tariff number 82041100
  • Country of origin Taiwan

Technical data

FeatureValue
Tightening Torque0.1 Nm / 1.0 Kgfcm / 0.9 in-lb
Tolerance+/-10% (factory certificate on request), precise for at least 20,000 clicks
Bit HolderMagnetic, 4.0 mm hex (factory standard)
DriveHex shank 4.0 mm (factory standard)
MaterialAlloyed steel
Adapter Diameter8 mm
Adapter Length22.0 mm (without shank)
Overall Length32 mm
Weight7.5 g
ManufacturerBernstein
Manufacturer Nr.4-971
EAN4250838525480
HS-Code82041100
GPSR manufacturer informationBERNSTEIN Werkzeugfabrik Industriehof Trecknase 1 DE-42897 Remscheid www.bernstein-werkzeuge.de
Condition of articleNew
Article authenticityOriginal product
ESD versionTEC
NormDIN EN ISO 6789

Questions about this item

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