Midwest 15 Inch Straight Handle Seamer
The Midwest MWTS15 is a full length 381mm (15 inch) straight handle seamer for bending and forming siding trim, fascia and flashing material. The long handles give the leverage needed to fold a full length of metal flashing in one pass, while the interchangeable blades let you match the profile to the job. It is a go to tool for roofers and sheet metal fabricators who form flashing on a regular basis.
Key Features
- Interchangeable blades for forming different profiles as the job changes
- Compound lever action handles for more bending power with less effort
- Kush’N-Power grips for comfort during repeated use
- Full length 381mm handles for maximum leverage on long flashing runs
- Built for siding trim, fascia and flashing work
Specifications
- Part number: MWTS15
- Overall length: 381mm (15 inch)
- Handle style: straight with Kush’N-Power grips
- Blade style: interchangeable
- Action: compound lever
Applications
- Folding full length metal flashing and capping runs
- Forming fascia and barge capping profiles on site
- Creating custom trims in Colorbond and Zincalume
- Forming siding trim on sheds, carports and cladding
- General sheet metal folding in the workshop
What You Need To Complete The Job
For offset work against walls and tight spots, add the Midwest 15 inch offset seamer. Keep a pair of leather rigger gloves on hand for sharp metal edges and cut the flashing to length with aviation snips. Browse the full Metal Roofing Tools range for more flashing tools.
Frequently Asked Questions
Why choose the 15 inch seamer over a smaller one?
The 15 inch (381mm) seamer folds a longer section of metal in one pass and the longer handles give more leverage, so it suits full length flashing runs and thicker folds. It is the model to reach for when you are forming fascia, barge capping and long trims where a clean, even fold matters.
Can the blades be changed to different profiles?
Yes. The Midwest seamer range uses interchangeable blades, so you can swap the blade to match the profile you are forming. That makes one handle useful across several jobs and keeps the cost down compared to buying a dedicated seamer for each fold profile.
Is this tool suitable for Colorbond flashing?
Yes. It is designed for the sheet metal used in roofing and cladding, including Colorbond and Zincalume flashing, fascia and trim. Cut the flashing to length with snips or shears first, then fold it with the seamer for a clean, straight line.
How does the straight handle seamer compare to the offset model?
The straight handle seamer places the handle directly behind the head, which gives a natural pushing action for open bench work and long flashing runs. The offset model places the handle to the side so your hand stays clear of the folded metal, which suits work against walls and in tight corners. Roofers commonly keep both in the kit and reach for the straight model for general folding and the offset model for detail work against fixed surfaces.



