Whats the difference between the c5r and the c4r ???

One is for downspouts and the other is for stove pipe. The depth of the jaws are 1.5" for the C5r and 1.25" for the C4r. The C5r is for pipe and the C4r is for downspouts, but I think you can use either for downspouts. The jaw depth is the only difference.

Does it work on 24 gauge galvanized smoke pipe?

Yes, they'd work on the smoke pipe. I've had many different pair over the years. These are good crimpers.

Can I use this on downspouts to add on extra

Ive never tried it on downspouts, just on sheet metal pipe. But if the your downspout is circular or oval it should work. I hope this helped.

Is the c5r the all around better crimper then the c4r because I would like to use for rain gutters but also like to use it if I need for duct work to?

The only difference between the two is the crimp length. The C5R has around a half inch more crimp length. Either will work great for you. I work on eve troughs as well and always use the C5R and have no complaints.

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🔩 Crimp like a pro — tighter, faster, smoother connections every time!

ONE HANDED OPERATION - Innovative thumb latch and spring-actuated handles enable quick, secure use with a single hand.
EFFORTLESS POWER STROKE - 7:1 compound leverage maximizes force with minimal effort, reducing hand fatigue on the job.
ERGONOMIC RED LINE HANDLE - Soft-touch, non-slip grip contours fit naturally for all-day comfort and control.
BUILT TO LAST MADE IN USA - Hardened all-steel construction with nickel chrome finish ensures durability and long service life.
PRECISION 5 BLADE CRIMPING - Creates a longer, shallower crimp that mimics factory quality for leak-proof, tight fittings.

The Malco C5R 5-Blade Pipe Crimper is a precision hand tool designed for HVAC pros and metalworkers to create factory-grade, leak-proof crimps on stove pipe and round duct. Featuring five hardened steel blades, ergonomic RedLine handles, and a powerful 7:1 leverage system, it delivers consistent, tight fittings with effortless one-hand operation. Built in the USA with durable nickel chrome finish, it’s engineered for long-lasting performance on any job site.

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Manufacturer	Malco
Part Number	C5R
Product Dimensions	29.85 x 10.8 x 3.18 cm; 68.04 g
Item model number	C5R
Size	Pack Of 1
Colour	Red/Black
Power Source	Hand Powered
Item Package Quantity	1
Number of Pieces	1
Number of handles	2
Handle material	Metal
Usage	HVAC installation, creating tight, leak-proof connections for round duct and stove pipe
Batteries included?	No
Batteries Required?	No
Item Weight	68 g

Malco C5R 5-Blade Pipe Crimper

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