Buyers who want a heavy-duty Irwin C-clamp and will pay more for a top-rated, well-reviewed tool.
Skip if
You want a budget clamp, since this is among the priciest C-clamps here.
Weight 1.09 Kilograms
Priced 173% above the category median ($15.99 across 43 tracked models)
Our scorecard
4.7/5overall
Owner rating4.8/5
4.8 average across 456 owner ratings
Popularity4.0/5
456 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other hand tools and workshop hand tools we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
The Irwin 21 is a C-clamp weighing 1.09 kilograms, priced at 43.64 dollars. That puts it at the upper end of this C-clamp group on both heft and cost.
It earns a 4.8-star rating across 456 reviews, the highest score in this set on a large, trustworthy review base. The 1.09-kilogram weight signals a substantial, rigid clamp built for real clamping force.
The listing publishes the weight but no jaw capacity or throat-depth spec, so confirm the clamping range you need. No recent monthly purchase figure is listed. If you want a top-rated, heavy Irwin C-clamp and the price is acceptable, it is a standout. Bargain hunters have cheaper options nearby.
Pros
Top 4.8-star rating in this group
Large 456-review base
Substantial 1.09-kilogram build
Trusted Irwin brand
Cons
Premium 43.64 dollar price
No jaw-capacity or throat-depth spec is listed
Specifications
Weight
1.09 Kilograms
Performance notes
At 1.09 kilograms this is a heavy, rigid C-clamp suited to demanding holds. The 4.8-star average across 456 reviews confirms strong owner satisfaction.
What buyers say
456 reviews at 4.8 stars make this one of the most highly regarded C-clamps in the group, with owners praising its hold.
We use necessary cookies to keep the site working. With your permission, we also use functional, analytics, and marketing cookies. Read our Cookie Policy.
