50 RUBY.Q Clamp
- Clamp
- 13.4 ounces
- Better rated than 79%
- More reviewed than 81%
A lightweight general purpose clamp with limited published specifications beyond its weight, so confirm size and capacity before buying.
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How it ranks among the 377 clamps we track
4.7★ across 978 Amazon ratings, Bayesian-smoothed toward the category average.
978 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
100+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 377 clamps we track - how the scorecard works · full clamps data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A general purpose clamp weighing about 0.38 kilograms, listed under the RUBY.Q model name. The available specifications are limited to weight, so exact jaw size and clamping range are not confirmed.
Beyond the model name and weight, the listing does not specify jaw opening, throat depth or clamping pressure, so anyone comparing this to other clamps on those points should check the product photos or ask the seller directly. At roughly 0.38 kilograms it sits in the range of a hand sized clamp rather than a heavy bar or pipe clamp.
- Model name RUBY.Q
- Weight about 0.38 kilograms
- Single clamp unit
- Listed under the Tools Clamps category
Who it's for
Shoppers who have already confirmed through the listing photos that this clamp fits their intended use, since the published specs here cover weight only. Not a good pick for anyone comparing clamps primarily on jaw capacity or throat depth.
Strengths and trade-offs
Drawn from this product's published specifications.
- Lightweight at about 0.38 kilograms
- Compact size suits hand held clamping tasks
- Clamping capacity and jaw size not specified
- Limited listing detail makes comparison difficult
Performance notes
With only weight listed among the specifications, how this clamp performs in terms of clamping force or jaw opening cannot be confirmed from the available data. Its roughly 0.38 kilogram weight suggests a hand sized clamp rather than a large bar clamp.
Specifications
| Brand | 50 |
|---|---|
| Item Weight | 13.4 ounces |
Other 50 clamps
How it compares
This product against the closest alternatives we track in clamps.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| 50 RUBY.Q ClampThis product | 4.7 / 5 | 978 | 4.1 / 5 |
| IRWIN 1964758 ClampIrwin | 4.7 / 5 | 23,290 | 4.6 / 5 |
| Bessey BPC-H34 ClampBESSEY | 4.8 / 5 | 9,535 | 4.5 / 5 |
| Yost LV-4 ClampYost | 4.6 / 5 | 10,723 | 4.5 / 5 |
| EMART EM-CLAMP-6EMART | 4.7 / 5 | 4,997 | 4.4 / 5 |
Similar clamps from other brands
Questions about the 50 clamps
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much does it weigh?
About 0.38 kilograms.
What category does this clamp fall under?
It is listed under Tools and Clamps.