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Torque Adapter 5.7 Nm for 1/4 Inch Bits to DIN EN ISO 6789 - Bernstein 4-988-7
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.
- 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
| Feature | Value |
|---|---|
| Preset | Precise for at least 20,000 clicks |
| Tolerance | +/-10% (factory certificate on request) |
| Tightening torque | 5.7 Nm / 58.0 Kgfcm / 50.4 in-lb |
| Bit magnetic holder | 1/4 inch hexagon 6.35 mm (DIN 3126) |
| Drive | 1/4 inch hex shank 6.35 mm (DIN 3126) |
| Material | Alloyed steel |
| Adapter diameter | 12 mm |
| Adapter length | 28.3 mm (without shank) |
| Overall length | 38.3 mm |
| Weight | 21 g |
| Manufacturer | Bernstein |
| Manufacturer Nr. | 4-988-7 |
| EAN | 4250838536875 |
| HS-Code | 82041100 |
| GPSR manufacturer information | BERNSTEIN Werkzeugfabrik Industriehof Trecknase 1 DE-42897 Remscheid www.bernstein-werkzeuge.de |
| Condition of article | New |
| Article authenticity | Original product |
| Norm | DIN 3126, DIN EN ISO 6789 |
Downloads
Datasheet
Certificate
Other
- Cases and Sets EN
- Bernstein Catalogue Pages Screwing Tools, Torque and Bits EN
- Bernstein Catalogue Pages Ball Joint Vices and Holders EN
- Bernstein Catalogue Pages VDE Tools EN
- Bernstein Catalogue Pages Pliers EN
- Bernstein ESD Guide EN
- Drehmoment Schraubendreher DE
- Kugelgelenk Schraubstock DE
- Schonbacken DE
- Bernstein Katalogseiten Schraubstöcke und Halter DE
- ESD Leifaden DE
- Bernstein Katalogseiten ESD Arbeitsplatz und ESD Handwerkzeuge DE
- Bernstein Katalogseiten Pinzetten DE
- Bernstein Katalogseiten VDE Werkzeuge DE
- Zangen DE
Questions about this item
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