Torque Adapter 0.6 Nm for 1/4 Inch Bits, Narrow Version Ø 10 mm - Bernstein 4-991-06
For very small tightening torques on electronic and precision-mechanics assemblies, the narrow torque adapter 4-991-06 fits between the holder and a 1/4 inch bit. It is factory preset to 0.6 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 0.6 Nm
- Fixed preset for at least 20,000 clicks at +/-10% tolerance, factory certificate on request
- Narrow design with only 10 mm diameter for tight access situations
- No torque unlocking when loosening, giving 30% higher breakaway torque without extra tools
- Compact 34.5 mm overall length at only 15 g weight
- Approved for power tools up to max. 100 rpm with minimum click repetition
Technical Data
| Feature | Value |
|---|---|
| Preset | Precise for at least 20,000 clicks |
| Tolerance | +/-10% (factory certificate on request) |
| Tightening torque | 0.6 Nm / 6.1 Kgfcm / 5.3 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 | 10 mm (narrow version) |
| Adapter length | 24.5 mm (without shank) |
| Overall length | 34.5 mm |
| Weight | 15 g |
Application
For the smallest tightening torques on electronic equipment, precision mechanics, medical technology and any workstation with restricted access, wherever an exact torque of 0.6 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 4250838536264
- Customs tariff number 82041100
- Country of origin Taiwan
| Weight | 0.015000 |
|---|---|
| Manufacturer | Bernstein |
| Manufacturer Nr. | 4-991-06 |
| EAN | 4250838536264 |
| 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 |










