IRWIN Bi-Metal Trapezoid Knife Blades, Pack of 100

The IRWIN Bi-Metal Trapezoid Knife Blades combine the best of two high-performance metals electro-welded together for superior durability and cutting efficiency. The cutting edge is crafted from high-speed steel, offering exceptional hardness that lasts up to three times longer than standard carbon steel blades, as proven in user trials. Whether cutting through plasterboard, drywall, roofing, insulation, flooring, or other heavy-duty materials, these blades deliver consistent, reliable performance.

The blade's body is constructed from spring steel, providing excellent flexibility and resistance to snapping under lateral pressure. A sharp blade is inherently safer, requiring less effort and offering better control—this design ensures long-lasting sharpness with minimal force needed. Additionally, the high-speed steel edge is heat-treated for enhanced hardness, maximising lifespan and cutting precision.

Key Features

• Extended lifespan – Up to 3x longer durability than standard blades
• High-performance materials – High-speed steel edge for hardness, spring steel body for flexibility
• Versatile use – Works on plasterboard, drywall, roofing, insulation, flooring, and more
• Safety & control – Stays sharper longer for safer, more efficient cuts
• Compatibility – Fits all standard utility knives
• Bulk pack – 100 blades for long-term use