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🔩 Master every seam with comfort and power — the Malco S3R means business.
The Malco S3R 3.25in Offset REDLINE Hand Seamer is a premium, forged steel tool designed for professional metal trades. Featuring an ergonomic offset handle with a non-slip Redline grip, it offers superior leverage and comfort for bending, folding, and flattening sheet metal up to 1-1/4 inches deep. Depth markings and a one-hand latch system enhance precision and ease of use, making it an indispensable tool for HVACR, roofing, siding, and commercial remodeling applications.













































| ASIN | B005ZDY5FS |
| Best Sellers Rank | #81,642 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #72 in Nippers & Snips |
| Brand Name | Malco |
| Capacity | 1 load |
| Color | Metallic |
| Customer Reviews | 4.7 4.7 out of 5 stars (446) |
| Global Trade Identification Number | 00686046534435 |
| Handle Material | Plastic |
| Included Components | 1 |
| Item Diameter | 1.25 Inches |
| Item Dimensions L x W x H | 12.75"L x 4.25"W x 4.5"H |
| Item Type Name | Malco S3R Offset Hand Seamer |
| Item Weight | 1 Pounds |
| Manufacturer | Malco |
| Manufacturer Warranty Description | Limited. |
| Material Type | Alloy Steel |
| Shape | Round |
| UPC | 686046534435 |
| Unit Count | 1.0 Count |
| With Lid | No |
J**1
Quality tool
It has only been a few months, tool works as it should. Weight and durability is good.
R**Z
Good
Good tools
M**C
Quality
Solid works as intended should last years
N**K
Best seamers
Great for tight spots and tough angles. Great all around. Durable and great tool like all malco tools are.
D**I
Theyre great ..except the lock keeps falling down..
Malco always delivers a quality product .im install hvac equipment everyday and literaly ise these everyday.theyre holding up as i expect ..flawlessly. The offset is wonderful for adding bends to sheet metal as it makes the process easier and faster
Z**D
So easy to use. The angle from handle to the jaws really help get the job done.
Standing seam metal roofing! This tool is so versatile. Wish I would of bought them years ago!
A**R
Use them often nice to have
Makes plenum work simple minus the expensive cost of getting them from an Hvac dealer. Good tool to have in hand and they hold up well like the malco name is known for
B**T
comes in handy
Wasn't sure about buying this tool because it's more expensive than some other brands. In the end, i'm glad i did. It feels high quality and it makes bending and straightening thin metal an easy task. I find myself using it more often than i expected, like today i used it to resize the earthquake straps on a new water heater.
M**T
the item is very useful
J**N
Nice product, thank you!
C**S
Great product
P**L
Overall Malco has some great solid seamers, but like some (not all) of its competitors they seem to put in a pretty hard spring. when you are bending seams for an extended period of time, just the strength of the spring can wear your hand out. I don't quite understand the logic of having such hard Springs installed where the strength needed to bring the seamer back to open position is minimal. One more issue is when trying to squeeze 2 or 3 over bends it becomes pretty hard. The handles should be almost touching when no sheet is inserted. I work with copper. Hopefully it cracks soon so I can weld it back tighter. Other then that, quality is top notch.
Trustpilot
3 weeks ago
3 weeks ago