Malco Folding Tool 12F 18F 24F Sheet Metal Hand Seamer Hem Tool USA
Malco Folding Tool 12F 18F 24F Sheet Metal Hand Seamer Hem Tool USA
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Malco Folding Tool - Hand Seamer for Sheet Metal
12F 18F 24F Models | Creates 3/8" and 1" Folds | Hems, Pans, Drive Edges | Sight Holes | Made in USA
MALCO FOLDING TOOL - HAND SEAMER FOR HEMS, PANS, AND DRIVE EDGES
The professional hand seamer that creates precise 3/8-inch and 1-inch folds in sheet metal for hems, pans, and drive edges - essential for gutter, flashing, and ductwork fabrication!
12F (12") | 18F (18") | 24F (24") | Dual Fold Depths | Sight Holes | Made in USA
Key Benefits at a Glance
Creates 3/8" and 1" folds in one tool.
See through for precise fold placement.
12", 18", or 24" for any job size.
Multiple fold types from one tool.
Malco Folding Tool Hand Seamer - Damascus, Oregon:
The Malco Folding Tool is the professional hand seamer for creating precise folds in sheet metal. This tool creates both 3/8-inch and 1-inch fold depths, allowing you to form hems, pans, and drive edges without a bench brake. The folding tool works by clamping onto the edge of sheet metal and bending it to the desired angle - you work your way along the fold line in sections, creating a consistent bend across the full length. Sight holes in the tool body allow you to see through to the metal below, ensuring precise alignment of your fold line with marks on the workpiece. The tool is constructed from two steel halves permanently joined together for durability and consistent jaw alignment. Three lengths are available: the 12F (12-inch) for smaller pieces and tight spaces, the 18F (18-inch) for general-purpose work, and the 24F (24-inch) for longer folds with fewer passes. Gutter installation contractors use folding tools throughout fabrication - creating hems on flashing edges, forming pan shapes for custom components, and bending drive edges for duct connections. The hand seamer is essential for on-site fabrication where you need to modify or create sheet metal components that are not available as standard products. GutterAll stocks all three Malco Folding Tool sizes at the Damascus, Oregon warehouse for contractors who need reliable hand seaming tools.
| Model | Length | Fold Depths | Origin |
| 12F | 12 Inches | 3/8" and 1" | Made in USA |
| 18F | 18 Inches | 3/8" and 1" | Made in USA |
| 24F | 24 Inches | 3/8" and 1" | Made in USA |
Location: GutterAll - 19759 SE Sunnyside Rd, Damascus, Oregon 97089 - Mon-Fri 7am-4pm, Sat 9am-2pm PST
Phone: (503) 850-6784
Email: sales@gutterall.com
Contractor Pricing: Volume discounts available on Malco tools
What is a Sheet Metal Folding Tool (Hand Seamer)?
A folding tool (also called a hand seamer or hand folder) is a portable tool that creates bends and folds in sheet metal without requiring a bench brake. You clamp the tool onto the edge of the metal at your marked fold line, then bend the metal up to the desired angle. By working along the fold line in sections (overlapping your bites), you create a consistent bend across the full length of the workpiece. The Malco Folding Tool has two jaw depth settings - 3/8-inch and 1-inch - so you can create folds of either depth depending on your application. Hems use the 3/8-inch depth to fold a safe edge. Pans and drive edges typically use the 1-inch depth for structural flanges. The sight holes let you see exactly where your fold line aligns with the jaw edge, ensuring accurate placement.
Professional Installation Applications:
Malco Folding Tools excel in professional applications requiring portable sheet metal bending:
| Application | Fold Type | Why Folding Tool Works Best |
|---|---|---|
| Flashing Hems | 3/8" hem fold on flashing edges | Safe edges, no sharp metal exposed |
| Drive Edges | 1" flange for duct connections | Creates slip fit for ductwork |
| Pan Forming | 1" sides for pan shapes | Custom pans from flat stock |
| Gutter End Caps | Folding edges for sealing | Custom fit to gutter profile |
| Drip Edge Bends | Creating drip lip angles | On-site modifications |
| Custom Flashing | Multiple bends from flat stock | No brake needed on jobsite |
Contractor Insight: A folding tool is one of the most versatile sheet metal tools you can carry. When you encounter situations where standard flashing does not fit, or you need a custom component, the folding tool lets you fabricate it on-site from flat stock. The dual 3/8-inch and 1-inch depths cover the most common fold requirements - smaller hems for safe edges and larger flanges for structural connections. The 18F (18-inch) is the most popular size for general gutter and flashing work because it balances reach with maneuverability.
Dual Fold Depths - 3/8-Inch and 1-Inch:
The Malco Folding Tool provides two fold depth options in one tool. The 3/8-inch depth is used for creating hems - folding the edge of sheet metal over on itself to eliminate sharp edges. Hems are standard on flashing, gutter components, and any metal edge that will be handled or could cause injury. The 1-inch depth is used for larger flanges such as drive edges (the lip that slides into duct connections), pan sides, and structural folds where more material is needed for strength or attachment. Having both depths in one tool means you can complete most folding tasks without switching tools.
Sight Holes - Precise Fold Alignment:
The sight holes in the tool body are a key feature for accurate work. When you position the folding tool on sheet metal, you can look through the sight holes to see exactly where the jaw edge aligns with your marked fold line. This is critical because even small misalignment compounds across multiple bites - if your first fold is 1/8-inch off, the error carries through the entire bend. The sight holes let you verify alignment before clamping, ensuring your fold ends up exactly where you intended. This matters for custom flashing where precise dimensions are needed for proper fit.
Two Steel Halves - Durable Construction:
The Malco Folding Tool is constructed from two steel halves that are permanently joined together. This construction method ensures the jaws remain parallel and aligned throughout the tool's life. Cheap folding tools with riveted or bolted construction can develop play in the jaws over time, resulting in uneven folds. The permanently joined construction maintains consistent jaw alignment for uniform bends every time. The steel construction also provides the rigidity needed to create clean folds without the tool flexing under pressure.
12F vs 18F vs 24F - Choosing the Right Length:
Malco offers three folding tool lengths to match different work requirements. The 12F (12-inch) is compact and maneuverable - ideal for small pieces, tight spaces, and detail work where a longer tool would be awkward. The 18F (18-inch) is the most popular general-purpose size - long enough to make efficient progress on typical flashing and gutter work, but still manageable in most situations. The 24F (24-inch) is for larger work where you want to cover more length with each bite - reduces the number of passes needed on long folds, but requires more hand strength and space to operate. Most gutter contractors start with the 18F and add the 12F or 24F as their work requires.
Key Features of Malco Folding Tools:
| Feature | Specification | Contractor Benefit |
|---|---|---|
| Fold Depths | 3/8" and 1" | Two depths for hems and flanges |
| Sight Holes | Through-body alignment holes | Precise fold line placement |
| Construction | Two steel halves permanently joined | Consistent jaw alignment |
| Available Lengths | 12", 18", 24" | Size for any job requirement |
| Fold Types | Hems, pans, drive edges | Multiple applications from one tool |
| Portability | Handheld, no bench required | On-site fabrication capability |
The Malco Folding Tool is the professional hand seamer for creating folds and bends in sheet metal. Also known as a hand folder, hand seamer, sheet metal folder, or bending tool, this portable tool creates precise 3/8-inch and 1-inch folds for hems, pans, and drive edges. Sight holes in the tool body allow you to see exactly where your fold line aligns for accurate placement. Two steel halves permanently joined together ensure consistent jaw alignment. Three lengths available: 12F (12-inch) for compact work, 18F (18-inch) for general purpose, and 24F (24-inch) for longer folds. Essential for on-site fabrication of custom flashing, gutter components, and ductwork where standard products do not fit. Made in USA by Malco Products. GutterAll stocks all three Malco Folding Tool sizes at the Damascus, Oregon warehouse. Contact (503) 850-6784 or email sales@gutterall.com to order.
Key Benefits - Why Contractors Choose Malco Folding Tools:
- Dual Fold Depths: 3/8" for hems, 1" for flanges and drive edges
- Sight Holes: See through for precise fold line alignment
- Steel Construction: Two halves permanently joined for durability
- Three Lengths: 12", 18", or 24" to match job requirements
- Makes Hems: Safe folded edges on flashing and components
- Makes Pans: Form pan shapes from flat sheet stock
- Makes Drive Edges: Create slip-fit flanges for ductwork
- Portable: No bench brake needed for on-site work
- Custom Flashing: Fabricate non-standard components
- Gutter Work: Modify end caps, create custom pieces
- Consistent Alignment: Permanently joined jaws stay parallel
- Professional Results: Clean, uniform folds every time
- Versatile Tool: Handles most sheet metal folding tasks
- Made in USA: Malco professional quality since 1950
- Essential Tool: Standard equipment for sheet metal fabrication
Product Specifications:
| Product Type: | Folding Tool / Hand Seamer |
| Model Numbers: | 12F (12"), 18F (18"), 24F (24") |
| Fold Depths: | 3/8-Inch and 1-Inch |
| Fold Types: | Hems, pans, drive edges |
| Brand: | Malco Products |
| Construction: | Two steel halves permanently joined |
| Alignment Feature: | Sight holes for depth alignment |
| Material Compatibility: | Aluminum, galvanized steel, painted steel |
| Applications: | Flashing, gutters, ductwork, sheet metal fabrication |
| Country of Origin: | USA |
| Expected Service Life: | With proper use, provides years of professional service; avoid over-bending which can stress jaws; do not use as a hammer or pry bar; wipe clean after use to prevent corrosion; store in dry location; inspect jaw alignment periodically; the permanently joined construction maintains alignment throughout tool life |
| Condition: | New |
12F vs 18F vs 24F - Choosing the Right Size:
12F (12-INCH)
- 12-inch jaw length
- Compact and maneuverable
- Tight spaces and detail work
- Smaller flashing pieces
Best for: Detail work, small pieces
18F (18-INCH) - MOST POPULAR
- 18-inch jaw length
- General-purpose size
- Balance of reach and control
- Typical flashing and gutter work
Best for: Most gutter and flashing work
24F (24-INCH)
- 24-inch jaw length
- Longer folds, fewer passes
- Large flashing and panels
- Requires more hand strength
Best for: Large pieces, production work
Pro Tip: Most gutter contractors start with the 18F as their primary folding tool. The 18-inch length handles typical flashing and gutter component work efficiently while remaining maneuverable. Add the 12F for detail work in tight spaces, or the 24F if you frequently work with larger pieces. All three sizes create the same 3/8-inch and 1-inch fold depths - the only difference is jaw length.
Common Names - Same Professional Tool:
Folding tools are known by several names in the construction trades. Understanding these synonyms helps contractors find the right bending tool:
Folding Tool
Primary product name
Hand Seamer
Common industry term
Hand Folder
Describes function
Sheet Metal Folder
Material-specific name
Bending Tool
Generic term
Hem Tool
Application-specific name
Who Uses Malco Folding Tools?
Gutter Installation Contractors
- Custom flashing fabrication
- End cap modifications
- Drip edge bending
- On-site component creation
- Hem edges for safety
- Pan forming for custom pieces
Contractor Benefit: No brake needed on jobsite
HVAC and Sheet Metal Contractors
- Drive edge creation
- Duct fitting fabrication
- Pan and tray forming
- Transition pieces
- Hem folds on edges
- Custom component work
Contractor Benefit: Portable ductwork fabrication
Setup Guide - How to Use Malco Folding Tool:
- Mark Fold Line: Use a marker or scribe to mark where you want the fold on your sheet metal
- Select Fold Depth: Choose 3/8" depth for hems or 1" depth for flanges and drive edges
- Position Tool: Place the folding tool jaws on the metal with the jaw edge aligned at your fold line
- Check Alignment: Look through the sight holes to verify the fold line is properly positioned
- Clamp Metal: Squeeze the handles firmly to grip the sheet metal in the jaws
- Make Fold: While holding the tool closed, bend the metal up to the desired angle (typically 90 degrees)
- Overlap and Repeat: Move along the fold line, overlapping each bite slightly for a consistent bend
- Check Results: Verify the fold is straight and at the correct angle, adjust as needed
Pro Tip: For straight folds, work in one direction along the fold line with consistent overlapping bites. The sight holes help you maintain alignment as you progress. For hems (folding the edge completely over), make a 90-degree fold first, then fold it flat in a second pass. Let the tool do the work - forcing can cause uneven bends or distort the metal.
Frequently Asked Questions:
Q: What is the difference between 3/8" and 1" fold depths?
The 3/8" depth is for hems - folding the edge over on itself to eliminate sharp edges. The 1" depth is for larger flanges like drive edges on ductwork, pan sides, and structural folds where more material is needed.
Q: Which size should I get - 12F, 18F, or 24F?
The 18F (18-inch) is the most popular general-purpose size and handles typical flashing and gutter work. The 12F is better for detail work and tight spaces. The 24F is for larger pieces where you want fewer passes.
Q: What are the sight holes for?
The sight holes let you see through the tool to verify that your fold line is properly aligned with the jaw edge before you clamp and bend. This ensures accurate fold placement.
Q: Can this cut through sheet metal?
No, the folding tool is for bending only. It clamps and folds metal but does not cut. You need snips, shears, or a hole saw for cutting.
Q: What thickness of metal can I fold?
The Malco folding tool handles standard sheet metal gauges used in gutter, flashing, and ductwork - typically 26-gauge to 22-gauge aluminum and galvanized steel.
Q: Is contractor pricing available?
Yes. GutterAll offers contractor pricing on Malco tools. Contact GutterAll at (503) 850-6784 or email sales@gutterall.com for volume pricing.
Safety Notice
WEAR APPROPRIATE SAFETY EQUIPMENT. Use safety glasses when working with sheet metal. Wear work gloves - sheet metal edges are extremely sharp and can cause severe cuts. Be aware of pinch points when closing the tool jaws. Do not use the folding tool as a hammer or pry bar. Ensure metal is properly aligned before applying bending force. Keep fingers clear of the fold area. Inspect the tool for damage before each use.
Order Malco Folding Tool - Hand Seamer
The professional hand seamer for hems, pans, and drive edges in sheet metal.
Malco Folding Tool creates precise 3/8-inch and 1-inch folds for sheet metal fabrication. Sight holes ensure accurate fold line alignment. Two steel halves permanently joined for consistent jaw alignment. Three sizes available: 12F (12-inch), 18F (18-inch), and 24F (24-inch). Essential for on-site fabrication of custom flashing, gutter components, and ductwork. Made in USA by Malco Products. GutterAll stocks all three sizes at the Damascus, Oregon warehouse. Contractor pricing available.
Contact GutterAll: (503) 850-6784
Or email: sales@gutterall.com
GutterAll - Malco Folding Tool Hand Seamer
Create precise folds on the jobsite - the hand seamer that makes hems, pans, and drive edges without a bench brake. Malco Folding Tools feature dual 3/8-inch and 1-inch fold depths, sight holes for accurate alignment, and two steel halves permanently joined for durability. Three lengths available: 12F (12-inch), 18F (18-inch), 24F (24-inch). Essential for custom flashing fabrication, gutter component creation, and ductwork. Made in USA by Malco Products since 1950.
GutterAll - Damascus, Oregon
Professional Gutter and Roofing Supplies for Contractors
19759 SE Sunnyside Rd
Damascus, OR 97089
Mon-Fri: 7am-4pm
Sat: 9am-2pm PST
sales@gutterall.com
(503) 850-6784
