5-Blade Crimper – Sheet Metal Pipe

Use Malco’s 5 Blade Crimper to downsize stove pipe and round duct. The five blades of this versatile sheet metal crimper produces a 1-5/8 inch (41.3 mm) long, shallow, double crimp. The crimps produced from the tool replicates factory indentations and ensures a tight fitting, leak-proof connection. The connection is also more self-supporting during installation. A handle closing stop maintains a consistent crimp. The tool is made with hardened all-steel construction and a nickel chrome finish, which ensures a long service life.

The Malco 5 Blade Sheet Metal Crimper also features ergonomic RedLine Handle technology. An engineered handle opening compliments the natural power stroke of any user’s hand and maximizes the powerful 7:1 mechanical advantage of compound-leverage head to handle linkage. Comfortable handle grip contours, a non-slip grip insert, spring handle actuation, and a thumb-operated handle latch ensure a natural fit and feel.


•    Quickly downsize ends of round duct and stove pipe.
•    Creates a tight fitting, more self-supporting crimp connection.
•    Compound leverage produces 7 to 1 mechanical advantage.
•    Ergonomic Redline Handles won’t wear you down.


Catalog #DescriptionThroat Depth in. (mm)Tool Length in. (mm)Net Weight oz. (g)
C5R5 Blade Pipe Crimper1-5/8 (41.3)9-5/8 (244)17 (482)

Capacities: in (mm)

Aluminum Copper Stainless Steel 26 Gauge Galvanized Steel 24 Gauge Mild Steel 24 Gauge
.035 (0.89) .023 (0.58) .018 (0.46) .028 (0.71) .024 (0.61)



My Review for 5-Blade Crimper – Sheet Metal Pipe

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AM "Andy"

It works well, gives a professional quality result
Unless you're a contractor doing a lot of vent work, you won't use this much. But when you need it, you need it. This is very easy to use and gives a very nice, professional looking crimp.

B. Wayne Davis

Pipe crimper
It met expectations. It fulfills a need I had for which I had no other solutions. It was easy to use.


Improved over old model
Like the lock location, (better than older version) We use this EVERY DAY. Looks well constructed. Would buy it again.

Andrew E. Collins

My Review
The Malco C5R Crimper met my expectations and the price was well worth the value I received. Job well done.


Love em
Best bang for your buck here. Light, sturdy, easily used!

Toney Brooks

I've been in the hvac industry 26 years and have tried all the latest and greatest tools,but if it don't say MALCO in my tool bag it does not go period! ALL TOOLS ARE NOT CREATED EQUALLY.

Keith D

Great working Crimper!
I bought this tool because I needed to fit the same size pipe into another of similar size. I tried & I tried & couldn't get them to connect. I saw this tool while my heating duct work was being worked on & decided this was a tool to have! I bought it & used it on one end of the 3" pipe & walla! It fit fine!Very well made & is well worth the price.