Tools
Red Devil 4204 1½" Flexible Putty Knife
Product description
Includes a single 1½ inch flexible putty knife.
Blade: precision-ground high-carbon steel that resists corrosion and provides a keen scraping edge. The blade is thin enough to flex when needed but sturdy enough for scraping and light prying tasks.
Handle: molded, shatterproof polypropylene designed to withstand solvents and rough use. The end of the handle features a solid steel nail-setting head for driving or seating small nails.
Construction emphasizes durability and safety: solvent-resistant grip, rust-resistant blade, and a metal-reinforced handle cap. Intended for tasks such as applying and smoothing putty or compound, scraping paint and adhesives, cleaning tools, and general-purpose shop work.
Pros
- Durable high-carbon steel blade
- Solvent- and shatter-resistant handle
- Compact, belt-friendly size
Cons
- Protective coating may attract sticky residue as it wears
- Edge can dull with heavy use
- Simple handle lacks large ergonomic padding
VerdictWell-built and practical, this 1½ inch flex putty knife is a reliable choice for painters, handymen, and boat owners who need a compact scraper. The high-carbon steel blade offers a good balance of flexibility and edge retention, while the solvent-resistant polypropylene handle stands up to job-site chemicals and drops. Its compact size fits a tool belt and performs well for scraping, spreading, a
Reader reviews
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Thresherfox 5/5
Great for tough scraping
My go-to for scraping barnacles off shafts and props. Very rigid and tough; it will gouge soft material. Compact enough for a tool belt and built solid.
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Amanda Doyle 5/5
Fast arrival
Arrived quickly and works great.
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Ekrem İmamoğlu 5/5
Built to last
Feels like a lifetime-quality tool—very durable.
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C.... 5/5
Flexible or stiff — useful both ways
Available in both flexible and stiff blade versions. Both are well made and each suits different tasks, so I recommend getting one of each.
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Awake in Illinois 5/5
Well made
Seems well constructed and durable.
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shaun taylor 2/5
Finish could be better
Works fine, though the finish and overall polish weren't as high as I expected.
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AJ 5/5
Painter-friendly design
Good flex and a slim profile after 20+ years of painting I prefer these. No bulky rubber grip and the metal cap lets you pry paint can lids without breaking the handle. Sold under other retailer labels too.
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Dan P. 5/5
Exactly what I needed
Stiff blade and sturdy handle, one side is ground so it scrapes well. Sticker left sticky residue, but otherwise a solid, dependable putty knife.
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pick 4/5
Overall a smart pick
Slightly thinner than some brands but still stiff and it slices through putty well. Has a protective coating that can cause sticking as it wears—removing it with a solvent helps. At this price just replace if it wears out.
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Justin M 5/5
Handy for cans and brushes
I use the hooked tip to open paint cans — better than a screwdriver — and the comb helps clean brushes quickly. Not great for fully cleaning large rollers; that takes a lot of effort.
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Colin Duff 5/5
Useful pry tool
Good rigid knife, I mostly use it to pry and separate things. Plenty of uses beyond putty work; I’ll likely buy another when this edge wears.
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Bill 5/5
Sharp and reliable
Very well made and sharp. I use it to scrape gaskets and would purchase again.
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