Bernstein 4-991 Series Hexagon Socket Torque Adapter, 6.35 mm, 1/4in Insert, Steel Grey Finish
- RS Stock No.:
- 465-531
- Mfr. Part No.:
- 4-991-03
- Brand:
- Bernstein
Subtotal (1 unit)*
£32.95
(exc. VAT)
£39.54
(inc. VAT)
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Temporarily out of stock
- Shipping from 18 November 2025
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| Units | Per unit | 
|---|---|
| 1 + | £32.95 | 
*price indicative
- RS Stock No.:
- 465-531
- Mfr. Part No.:
- 4-991-03
- Brand:
- Bernstein
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
| Select all | Attribute | Value | 
|---|---|---|
| Brand | Bernstein | |
| Type | Torque Adapter | |
| Series | 4-991 | |
| Head Type | Hexagon Socket | |
| Size | 6.35 mm | |
| Insert Size | 1/4in | |
| Finish | Steel Grey | |
| Select all | ||
|---|---|---|
| Brand Bernstein | ||
| Type Torque Adapter | ||
| Series 4-991 | ||
| Head Type Hexagon Socket | ||
| Size 6.35 mm | ||
| Insert Size 1/4in | ||
| Finish Steel Grey | ||
RoHS Status: Exempt
- COO (Country of Origin):
- DE
The Bernstein Torque adapter is a narrow version designed for 1/4 inch bits, offering precise and consistent torque for at least 20,000 clicks. It features a preset torque of 0.3 Nm with a tolerance of ±10%, delivering a tightening torque of 0.3 Nm. The adapter includes a 1/4 inch (6.35 mm) hexagon magnetic bit holder and matching hex shank drive, both compliant with DIN 3126 standards, ensuring reliable performance in precision applications.
Material alloyed steel 
Adapter Ø 10 mm
adapter length 24.5 mm
Length 34.5 mm
Weight 15 g
Adapter Ø 10 mm
adapter length 24.5 mm
Length 34.5 mm
Weight 15 g
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