The Stanley DYNAGRIP™ Heavy-Duty Hacksaw incorporates an improved grip for both accurate and comfortable sawing. The durable bi-metal frame is designed for extra cutting capacity and to withstand heavy-duty use. Patented quick blade change lever and tensioning device allows adjustment and memory of the tension, which facilitates faster cutting. Blades can be positioned at 90° or 45°.. Max. Blade Tension: 80kg..