Malco S3R 3-Inch Offset Hand Seamer with Redline Handles | Drop-Forged Steel Jaws for Bending & Flattening Sheet Metal | 1/4" to 1-1/4" Depth Markings | 24-Gauge Capacity
High-quality materials for maximum durability
Verified by US suppliers for assured quality
Suitable for professional workshops & home garages
Malco S3R 3-Inch Offset Hand Seamer with Redline Handles | Drop-Forged Steel Jaws for Bending & Flattening Sheet Metal | 1/4" to 1-1/4" Depth Markings | 24-Gauge Capacity is backordered and will ship as soon as it is back in stock.
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Shipping and Returns
Shipping and Returns
Shipping Policy
We ship all orders directly from our California distribution center. Every item is carefully packed and processed within 1–2 business days. Delivery within the United States typically takes 2–5 business days, depending on your location. Once your order ships, you’ll receive a tracking number to follow your package every step of the way.
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Returns Policy
If you’re not fully satisfied with your purchase, we’re here to help. Most items can be returned within 30 days in their original condition. Simply contact our support team, and we’ll provide return instructions. Refunds are issued once the product is received and inspected.
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Description
Description
The Professional Choice for Precision Overhead Bending
The Malco S3R 3-Inch Offset Hand Seamer is a specialized tool built for the rigors of the modern jobsite. While standard seamers are great for bench work, the S3R's offset design shines in the field—particularly for overhead HVACR installation, roofing, and siding applications. By angling the handles away from the material, this tool provides the clearance needed to work comfortably in confined spaces without sacrificing power or visibility.
Engineered for Maximum Mechanical Advantage
At the heart of the S3R is a powerful compound leverage design that multiplies your strength. Whether you are straightening a flange or flattening a standing seam, these seamers handle 24-gauge galvanized steel with ease. The drop-forged, high-impact steel jaws are built to withstand heavy abuse, while the rust-resistant nickel plating ensures a long tool life in all weather conditions.
Precision in Every Fold
Consistency is the hallmark of professional work. The S3R features precise vee-notched depth graduations on the jaws, graduated in 1/4-inch (6.4 mm) increments. This allows you to create uniform bends from 1/4" to 1-1/4" deep without the need for a separate measuring tool. The jaws remain perfectly aligned under pressure, ensuring a clean, straight edge every time you squeeze.
Comfort That Lasts All Day
Equipped with Malco’s patented Redline Handles, the S3R is designed to fit the way you work. The ergonomic contours and soft-touch, non-slip grips provide a secure hold even in oily or wet conditions. The intuitive one-hand operation latch and self-opening spring mechanism allow for seamless transitions between tasks, making this seamer a reliable, high-performance addition to your professional tool kit.
Technical Specifications:
- Jaw Width: 3 inches (76.2 mm)
- Bending Depth: 1/4" to 1-1/4" (6.4–31.8 mm)
- Material Capacity: 24-Gauge Galvanized or Mild Steel
- Handle Type: Ergonomic Redline Offset with Non-Slip Grip
- Leverage: Compound Head-to-Handle Linkage
- Finishing: Rust-Resistant Nickel Plating
- OFFEST DESIGN FOR OVERHEAD WORK: The specialized offset handle configuration keeps your hands above the work surface, making the S3R the ideal choice for overhead applications, tight corners, and long runs where a straight handle would obstruct your view or movement.
- PREMIER FORGED STEEL DURABILITY: Engineered for high-impact use, these 3-inch jaws are drop-forged from premium steel and finished with rust-resistant nickel plating. Perfect for bending, folding, and flattening sheet metal edges in HVAC, roofing, and siding trades.
- POWERFUL COMPOUND LEVERAGE: The advanced head-to-handle linkage maximizes your mechanical advantage. Easily form flanges or flatten seams from 1/4" to 1-1/4" deep in 24-gauge galvanized or mild steel with significantly reduced hand effort.
- REDLINE ERGONOMIC HANDLES: Designed for all-day jobsite comfort, Redline handle contours provide a natural fit. The over-molded, non-slip inserts and optimized handle-opening range deliver maximum leverage while preventing hand fatigue during repetitive use.
- ONE-HAND OPERATION LATCH: Features a unique, easy-to-operate latch for smooth one-handed opening and closing. This allows you to keep one hand free to steady the workpiece, increasing both precision and safety during complex metal fabrication.
| Brand | Malco |
| Color | Metallic |
| Material | Alloy Steel |
| Item Weight | 16 ounces |
| Product Dimensions | 12.75"L x 4.25"W x 4.5"H |
| Capacity | 1 load |
| Handle Material | Plastic |
| Shape | Round |
| Item Diameter | 1.25 inches |
| Number of Items | 1 |
Quality & Guarantee
Quality & Guarantee
We stand behind the quality of every product we offer.
All items are carefully selected from trusted manufacturers and are shipped new and unused.
Each product is designed to meet high standards of performance, durability, and safety.
Most items include a manufacturer’s warranty, providing added confidence in your purchase.
Our goal is to offer products you can rely on — whether for professional tasks or everyday use.
If you have questions before or after your purchase, our support team is here to help.
Please contact us through the Contact page or the FAQ page contact form for assistance.
Safe & Secure
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Frequently Asked Questions
What is included in the package?
What is included in the package?
The package includes the product as described by the manufacturer. Please check the product details for specifics.
Does this product come with a warranty?
Does this product come with a warranty?
Most products include a manufacturer’s warranty. Warranty details can be found on the product page.
How long does shipping take?
How long does shipping take?
Orders are processed within 1–2 business days. Standard delivery across the USA typically takes 2–5 business days, depending on your location.
Is this product suitable for professional use?
Is this product suitable for professional use?
Yes, this product is designed for both professional and everyday use.
Can I return this product if it doesn’t meet my needs?
Can I return this product if it doesn’t meet my needs?
Yes, returns are accepted according to our return policy, provided the item meets return conditions.




