Wuko 4000 Sheet Metal Disc-O-Bender

The WUKO 4000 Disc-O-Bender is a professional handheld sheet metal hemming tool designed to finish pre-bent edges from 90° to 180°. Specifically developed for long, straight sheet metal strips, the WUKO 4000 produces clean, consistent hems without requiring adjustments, making it an ideal tool for metal roofing, architectural sheet metal, and custom flashing fabrication.

With a bending height ranging from 8 mm (5/16") to 40 mm (1-9/16"), the WUKO 4000 allows contractors to form precise hems along virtually unlimited panel lengths. Its rolling bending mechanism provides smooth, controlled folding while helping protect painted and coated sheet metal surfaces from scratches and damage. The tool works especially well alongside WUKO Duo Benders and Uber Bender Duo models, which create the initial 90° bend before the Disc-O-Bender completes the hem.

Features & Benefits

• 180° Hemming Capability: Finishes pre-bent sheet metal edges from 90° to 180° for clean, consistent hems.
• Designed for Long Panels: Ideal for hemming long, straight sheet metal strips without a fixed maximum panel length.
• No Adjustments Required: Simple design allows users to begin hemming without adjusting the tool for different bending heights within its rated range.
• Clean, Precise Results: Rolling bending mechanism provides smooth, consistent folds along sheet metal edges.
• Painted & Coated Material Protection: Designed to help prevent scratches and surface damage during hemming.
• Extended Bending Height: Accommodates bending heights from 5/16" to 1-9/16".
• Versatile Applications: Ideal for starter panels, roof flashings, standing seam roofing components, and architectural sheet metal fabrication.
• Easy Operation: Simple rolling design allows controlled hemming with repeated passes along the sheet metal edge.
• Heavy-Duty Construction: Built for professional sheet metal fabrication with a weight of approximately 6 lbs.
• Manual Operation: No electrical power required.

Technical Specifications

• Bending Angle: 90°–180°
• Minimum Bending Height: 8 mm (5/16")
• Maximum Bending Height: 40 mm (1-9/16")
• Bending Capacity: 0.80 mm (22 ga) for common sheet metals
• Weight: 6.0 lbs (2.7 kg)
• Bending Mechanism: Rolling bending discs
• Bending Applications: Long, straight sheet metal edges
• Adjustment: No adjustments required
• Operation: Manual