Air-hammer users who want a wide 4-inch alloy steel chisel bit for surface breaking and scraping concrete.
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You do not run a pneumatic air hammer, or you want the cheapest option, since lower-priced air chisels here score as well or better.
Material Alloy Steel
Handle Alloy Steel
Size 4 inches x 7.5 inches
Our scorecard
4.5/5overall
Owner rating4.7/5
4.7 average across 118 owner ratings
Popularity1.2/5
118 owner reviews, fewer 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 4 ST475AIR is listed as a 4 by 7.5 inch air chisel priced at $20.99 with a 4.7-star rating from 118 reviews. The rating is strong, though its review base is the smallest among the air chisels in this group.
The listing specifies alloy steel for both the working end and handle and a 4 by 7.5 inch size, marking it as a pneumatic accessory with a wide cutting face for breaking and scraping. It needs an air hammer to drive it rather than hand striking. No weight is published, so judge heft by the dimensions.
At $20.99 it is priced above the cheaper Firecore air chisels here without a higher rating, so the appeal is the wide 4-inch face rather than value. ToolHandle is an Amazon Associate and earns from qualifying purchases, which does not influence our rankings.
Pros
Wide 4 by 7.5 inch face for surface breaking and scraping
4.7-star rating from 118 owners
Documented alloy steel construction
Cons
Smallest review base among the air chisels here
Priced above cheaper air chisels with equal or higher ratings
No weight spec is listed, and no monthly sales figure is shown
Specifications
Material
Alloy Steel
Handle
Alloy Steel
Size
4 inches x 7.5 inches
Performance notes
The 4 by 7.5 inch dimensions give a broad working face suited to surface breaking and scraping driven by a pneumatic air hammer. With no weight or shank size listed, confirm the bit fits your air hammer's chuck before relying on it.
What buyers say
Owners rate it 4.7 stars across 118 reviews, a strong score on a smaller sample than the other air chisels here. Feedback is positive overall, though no recent monthly sales figure is listed to gauge current demand.
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