Form the First 90° Mechanical Lock

The Stubai First-Stage Seamer is a professional hand tool for forming the initial 90° bend of a mechanical-lock standing seam. Designed for profiles measuring ½” across the top with a ⅜” down leg, the tool can be used with varying seam heights for starting, finishing, detail work, or manually closing standing seam panels.

• Professional Stubai standing seam roofing tool
• Compatible with 1″ and 1½” standing seam profiles using a ½” profile width
• Seams up to 24 gauge steel, 20oz copper, .032 aluminum, and 1mm zinc
• Smooth operation helps reduce panel marking
• Designed for roofing contractors and sheet metal professionals
• Pair with the Stubai Finish Hand Seamer(opens in new tab) for pro results