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Torque Adapter 5.7 Nm for 1/4 Inch Bits to DIN EN ISO 6789 - Bernstein 4-988-7

Bernstein ✓ Original product Brand new Made in Taiwan

The torque adapter 4-988-7 fits between a 1/4 inch bit and a holding tool and delivers a factory preset tightening torque of 5.7 Nm with +/-10% tolerance over at least 20,000 clicks. The click sound reliably prevents overtightening the screw.

Net
€24.30
excl. VAT
Item BS-4-988-7
Manufacturer no. 4-988-7
Question about this item
  • Specialist dealer since 2009
  • Invoice payment for regular customers
  • Worldwide shipping
  • Technical questions clarified with the manufacturer

Description

Anyone turning a standard 1/4 inch bit into a precise torque tool fits the torque adapter 4-988-7 between the holder and the bit. It is factory preset to 5.7 Nm and holds that value for at least 20,000 clicks with a tolerance of +/-10%.

Advantages

  • Overtightening is impossible, the click sound reliably signals 5.7 Nm
  • Fixed preset for at least 20,000 clicks at +/-10% tolerance, factory certificate on request
  • No torque unlocking when loosening, giving 30% higher breakaway torque without extra tools
  • Compact design with 38.3 mm overall length and 12 mm adapter diameter
  • Bit magnetic holder 1/4 inch hexagon 6.35 mm (DIN 3126) for fast bit changes
  • Approved for power tools up to max. 100 rpm with minimum click repetition

Application

For work on electronic equipment, in quick-change systems, robotic stations, aerospace and medical technology wherever an exact tightening torque of 5.7 Nm is required. With power tools, Bernstein recommends max. 100 rpm and minimum click repetition.

Standards and Supply Data

  • Tested to DIN EN ISO 6789 (manually operated torque screwdriving tools)
  • EAN 4250838536875
  • Customs tariff number 82041100
  • Country of origin Taiwan

Technical data

FeatureValue
PresetPrecise for at least 20,000 clicks
Tolerance+/-10% (factory certificate on request)
Tightening torque5.7 Nm / 58.0 Kgfcm / 50.4 in-lb
Bit magnetic holder1/4 inch hexagon 6.35 mm (DIN 3126)
Drive1/4 inch hex shank 6.35 mm (DIN 3126)
MaterialAlloyed steel
Adapter diameter12 mm
Adapter length28.3 mm (without shank)
Overall length38.3 mm
Weight21 g
ManufacturerBernstein
Manufacturer Nr.4-988-7
EAN4250838536875
HS-Code82041100
GPSR manufacturer informationBERNSTEIN Werkzeugfabrik Industriehof Trecknase 1 DE-42897 Remscheid www.bernstein-werkzeuge.de
Condition of articleNew
Article authenticityOriginal product
NormDIN 3126, DIN EN ISO 6789

Questions about this item

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