1 / 4BGS 185-135 Torsion Bar, 12.5 mm (1/2 inch), 135 Nm
The BGS 185-135 torsion bar is listed with a 12.5 mm (1/2-inch) drive and 135 Nm torque, for use as a torque limiter. The listing gives an approximate 10% tolerance when used with a 250Nm impact wrench within 5 seconds, so it is not presented as a precision torque wrench.
At a glance
- Listed as a torque limiter for impact-wrench use.
- The stated tolerance is approximately 10% when used with a 250Nm impact wrench within 5 seconds.
- The listing gives a 195 mm length and 12.5 mm (1/2-inch) size.
Pros and cons
Pros
- The 135 Nm rating gives a defined torque-limiting target for suitable impact-wrench work.
- Compact listed length of 195 mm.
Cons
- The stated tolerance is approximately 10%, making it unsuitable where tighter torque control is required.
Technical specifications
12 specifications| Brand | BGS |
|---|---|
| Model | 185-135 |
| Rated torque | 135 Newton Meters |
| Drive size | 12.5 mm (1/2") |
| Operation mode | Mechanical |
| Measurement standard | Metric |
| Head style | Fixed Square |
| Length | 195 Millimeters |
|---|---|
| Weight listed | 240 Grams |
| Material listed | Cardboard |
|---|---|
| Finish | Chrome |
| Colour | Blue |
What to know before buying
Listing details to confirm
The listing identifies the material as Cardboard while also describing a Chrome finish and Blue colour, which do not clearly establish the bar's construction. The listed item weight is 240 Grams, and the impact-wrench tolerance applies only under the stated 250Nm and 5-second condition. Confirm the bar material and operating details for your intended use.
What’s in the box
Included- BGS 185-135 torsion bar, 12.5 mm (1/2 inch), 135 Nm
Who is it for?
A good fit for
- Users seeking a simple, mechanical torque-limiting extension for impact-wrench tasks around the listed 135 Nm rating.
- Buyers whose work can accommodate the listing's approximate 10% tolerance under the stated operating condition.
Less suited to
- Users needing a calibrated torque wrench or tighter documented accuracy.
- Applications that do not match the stated impact-wrench condition, unless suitability has been confirmed.
Customer reviews on Amazon
- 5 stars
72% 72% - 4 stars
21% 21% - 3 stars
3% 3% - 2 stars
0% 0% - 1 star
4% 4%
The aggregate ratings lean positive, with most ratings in the four- and five-star categories, while a smaller one-star share indicates some less favourable experiences. Without written feedback, the reasons are unknown. These ratings do not establish torque accuracy or resolve the listing's material ambiguity, so buyers should judge suitability against the stated operating condition and tolerance.
Frequently asked questions
Is this a torque wrench?
The listing describes it as a torsion bar and torque limiter, not an adjustable or calibrated torque wrench.
What tolerance does the listing state?
It gives an approximate 10% tolerance when the bar is used with a 250Nm impact wrench within 5 seconds.
What is the drive size and length?
The listed size is 12.5 mm (1/2") and the listed length is 195 Millimeters.
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