Irwin 10506437 Low Tension I-75 Hacksaw with 300mm Blade (75kg/15,000 PSI) The Irwin 10506437 is a lightweight Hacksaw Frame fitted with a 300mm /12 inch 24TPI Bi-metal Blue Blade. This lightweight durable full metal frame tensions up to 15,000 PSI with a full metal tensioning mechanism. 90° to 180° blade mounting is available for sawing large objects. Features: Ergonomic Metal Frame for higher blade tension and prevents the blade being released when dropped Metal Tensioning Mechanism for a long-lasting tool Soft Touch Handles ensure comfortable sawing grip and prevent slippage Able to reach over 75kg blade tension to ensure accurate cutting