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The torque adapter 4-988 fits between a 1/4 inch bit and a holding tool and delivers a factory preset tightening torque of 5.0 Nm with +/-10% tolerance over at least 20,000 clicks. The click sound reliably prevents overtightening the screw.
Torque Adapter 5.0 Nm for 1/4 Inch Bits to DIN EN ISO 6789 - Bernstein 4-988
BERNSTEIN Original product
Net price (excl. VAT)
€24.30
Item BS-4-988
Manufacturer no. 4-988
Personal expert advice
Brand new Specialist dealer since 2009 Original product Worldwide shipping
Product data
Manufacturer no.4-988
EAN4250838529914
Customs tariff number82041100
ConditionNew
Article
BS-4-988
Frequently Bought Together
- This Item: €24.30
- Torque Adapter 0.5 Nm for 1/4 Inch Bits, Narrow Version - Bernstein 4-991-05 €31.63
- Torque Adapter 1.4 Nm for 1/4 Inch Bits with Magnetic Bit Holder 6.35 mm - Bernstein 4-984 €24.30
Total price
Anyone turning a standard 1/4 inch bit into a precise torque tool fits the torque adapter 4-988 between the holder and the bit. It is factory preset to 5.0 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 5.0 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
Technical Data
| Feature | Value |
|---|---|
| Preset | Precise for at least 20,000 clicks |
| Tolerance | +/-10% (factory certificate on request) |
| Tightening torque | 5.0 Nm / 51.0 Kgfcm / 44.3 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 |
Application
For work on electronic equipment, in quick-change systems, robotic stations, aerospace and medical technology wherever an exact tightening torque of 5.0 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 4250838529914
- Customs tariff number 82041100
- Country of origin Taiwan
| Manufacturer Nr. | 4-988 |
|---|---|
| Manufacturer | Bernstein |
| EAN | 4250838529914 |
| Weight | 0.021000 |
| HS-Code | 82041100 |
| GPSR manufacturer information | BERNSTEIN Werkzeugfabrik Industriehof Trecknase 1 DE-42897 Remscheid www.bernstein-werkzeuge.de |
| Article authenticity | Original product |
| Condition of article | New |
| Position sensing | No |
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