12 QMSP-412 Clamp
- Clamp
- 4 × 2.5 × 1 inches
A small clamp at roughly 4 by 2.5 by 1 inches, suited to light duty holding rather than heavy stock, with solid recent purchase volume.
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How it ranks among the 377 clamps we track
4.0★ across 33 Amazon ratings, Bayesian-smoothed toward the category average.
33 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
300+ 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
The QMSP-412 is a compact clamp measuring about 4 by 2.5 by 1 inches, small enough for light duty holding tasks rather than large stock. At that size it reads more like a spring or mini bar clamp than a heavy bench clamp.
Its small footprint, roughly 4 inches long, 2.5 inches wide and 1 inch thick, suggests a clamp meant for crafts, small repairs or holding thin material rather than furniture grade woodworking. The listing does not state jaw opening or clamping pressure, so how much it can actually grip is not confirmed by dimensions alone. Nearly 300 units were bought in the past month, ahead of several similarly sized listings.
- Model QMSP-412
- Dimensions about 4 x 2.5 x 1 inches
- 4.0 star average from 33 reviews
- About 300 bought in the past month
Who it's for
This suits crafters, hobbyists or anyone needing to hold small or thin pieces steady for gluing, drilling or light assembly. It is not sized for clamping thick lumber or heavy stock.
Strengths and trade-offs
Drawn from this product's published specifications.
- Compact size suits small or thin workpieces
- High recent purchase volume for its size class
- No jaw opening or clamping force listed
- 4.0 star average is lower than similar clamps
- Not sized for thick or heavy stock
Performance notes
At 4 by 2.5 by 1 inches, the QMSP-412 has room to grip thin to moderately sized pieces but is not built for large stock. No jaw opening or clamping force figure is listed, so exact holding capacity is not confirmed beyond its overall dimensions. A 4.0 star average across 33 reviews sits lower than some comparable clamps, though the listing gives no detail on what drove that rating.
Specifications
| Brand | 12 |
|---|---|
| Model | QMSP-412 |
| Dimensions | 4 × 2.5 × 1 inches |
Other 12 clamps
How it compares
This product against the closest alternatives we track in clamps.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| 12 QMSP-412 ClampThis product | 4.0 / 5 | 33 | 3.6 / 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 12 QMSP-412
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How big is the QMSP-412 clamp?
It measures about 4 by 2.5 by 1 inches according to the listing.
Is it suited to heavy stock?
Its compact dimensions suggest light duty use on small or thin pieces rather than thick lumber.
How many were bought recently?
About 300 units were bought in the past month.