--- product_id: 12882157 title: "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" brand: "malco" price: "$168.80" currency: USD in_stock: true reviews_count: 12 category: "Malco" url: https://www.desertcart.us/products/12882157-malco-s3r-3-inch-offset-hand-seamer-with-redline-handles store_origin: US region: United States of America --- # Depth markings in 1/4in increments 3.25in forged steel jaws Ergonomic offset handle 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 **Brand:** malco **Price:** $168.80 **Availability:** ✅ In Stock ## Summary > 🔩 Master every seam with comfort and power — the Malco S3R means business. ## Quick Answers - **What is this?** 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 by malco - **How much does it cost?** $168.80 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/12882157-malco-s3r-3-inch-offset-hand-seamer-with-redline-handles) ## Best For - malco enthusiasts ## Why This Product - Trusted malco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Redline Non-Slip Grip:** Over-molded handle insert ensures a secure, natural fit for all-day job site confidence. - • **Ergonomic Offset Handle:** Designed for maximum comfort and leverage, reducing hand fatigue during overhead or tight-space work. - • **Precision Forged Steel Jaws:** Engineered for flawless bending, folding, and flattening of sheet metal up to 1-1/4 inch depth. - • **Versatile Metal Trade Essential:** Perfect for HVACR, roofing, siding, and commercial remodeling professionals demanding durability and precision. - • **One-Hand Operation with Easy Latch:** Keep one hand free to steady your workpiece while seamlessly opening and closing the tool. ## Overview 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. ## 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 SteelHandle Type: Ergonomic Redline Offset with Non-Slip GripLeverage: Compound Head-to-Handle LinkageFinishing: Rust-Resistant Nickel Plating ## Features - 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005ZDY5FS | | Best Sellers Rank | #70,204 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #66 in Nippers & Snips | | Brand | Malco | | Brand Name | Malco | | Capacity | 1 load | | Color | Metallic | | Container Type | Bottle | | Customer Reviews | 4.7 out of 5 stars 449 Reviews | | 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 | 16 ounces | | Manufacturer | Malco | | Manufacturer Part Number | S3R | | Manufacturer Warranty Description | Limited. | | Material | Alloy Steel | | Material Type | Alloy Steel | | Model Number | S3R | | Product Dimensions | 12.75"L x 4.25"W x 4.5"H | | Shape | Round | | Special Features | not_applicable | | UPC | 686046534435 | | Unit Count | 1.0 Count | | With Lid | No | ## Product Details - **Brand:** Malco - **Capacity:** 1 load - **Color:** Metallic - **Handle Material:** Plastic - **Item Diameter:** 1.25 Inches - **Item Weight:** 1 Pounds - **Material:** Alloy Steel - **Product Dimensions:** 12.75"L x 4.25"W x 4.5"H - **Shape:** Round - **With Lid:** No ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/51Nr-GIJ1GS.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/713BWWkRFdL.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/71XdsUPCAIL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/71IwqCqybwL.jpg) ## Questions & Answers **Q: Hi, how well does the lock work. Is it like the older Milwaukee tin snips where they would accidentally pop open when squeezed in tool belt?** A: The plastic Latch doesn’t hold up very well . Broke the first week . Other than that they work great . **Q: Will these handle 24guage stainless?** A: Per manufacturers website...."Easily bend flanges or completely flatten seams from 1/4 to 1-1/4 inch (6.4-31.8 mm) deep in 24 gauge (0.71 mm) galvanized or (0.61 mm) mild steel." This will not work with 24 gauge stainless. **Q: Can anyone explain difference between fairmont tongs and hand seamer? Which is better for roofing installations? Thank you everyone who will have time** A: They are essentially the same thing. Fairmount tongs is just another name for a hand seamer. However, the forged hand seamers have wider size options. Fairmount tongs are powerful and versatile additions to any toolbox. They are used in HVACR, metal roofing, and many other sheet metal applications. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by A***R on April 11, 2026* ### ⭐⭐⭐⭐⭐ Review *by J***1 on October 19, 2025* ### ⭐⭐⭐⭐⭐ Review *by M***C on January 18, 2026* ## Frequently Bought Together - Malco S3R 3.25in Offset REDLINE Hand Seamer - Malco C5R 5-Blade Pipe Crimper - MIDWEST Aviation Snip Set - Left and Right Cut Offset Tin Cutting Shears with Forged Blade & KUSH'N-POWER Comfort Grips - MWT-6510C --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/12882157-malco-s3r-3-inch-offset-hand-seamer-with-redline-handles](https://www.desertcart.us/products/12882157-malco-s3r-3-inch-offset-hand-seamer-with-redline-handles) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-06*