Midwest 15 Inch Offset Handle Seamer

The Midwest MWTSO15 is a 381mm (15 inch) offset handle seamer built to bend and form siding trim, fascia and flashing material on site. The offset handle keeps your hand clear of the work surface while the interchangeable blades let you switch profiles without changing tools. It is a standard choice for roofers and sheet metal workers who fold metal flashing to a clean, straight line.

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
• Offset handle design keeps hands clear of the folded metal
• Built for siding trim, fascia and flashing work
• Backed by a 1 year warranty

Specifications

• Part number: MWTSO15
• Overall length: 381mm (15 inch)
• Net weight: 0.50kg (description-sourced)
• Product dimensions: 381 x 50 x 57mm (description-sourced)
• Handle style: offset with Kush’N-Power grips
• Warranty: 1 year

Applications

• Bending metal flashing to a clean line on roof edges and parapets
• Forming fascia and barge capping profiles
• Creating custom metal 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

Pair this seamer with the matching straight handle model to cover both straight and offset work, and add leather rigger gloves to protect against sharp metal edges. For cutting flashing to length before folding, keep a pair of aviation snips handy. Browse the full Metal Roofing Tools range for the rest of the kit.

Frequently Asked Questions

What is the difference between an offset seamer and a straight seamer?

An offset seamer has a handle that sits off to the side of the head, which keeps your hand clear of the metal you are forming and lets you work closer to the fold line. A straight seamer has the handle directly behind the head. Many roofers keep both: straight for general folding, offset for work against walls, flashings and tight spots.

Can the blades be changed?

Yes. The Midwest seamer range uses interchangeable blades, so you can switch blade profiles to match the material or the fold you are forming. That makes one seamer handle useful across several different jobs rather than buying a separate tool for each profile.

What material can this seamer bend?

It is designed for the sheet metal used in roofing and cladding, including Colorbond and Zincalume flashing, fascia, barge capping and siding trim. It folds the metal to a clean line rather than cutting it, so you use snips or shears to cut the flashing to length first and the seamer to form the fold.