The Stanley FatMax Hacksaw with a durable die-cast aluminium body that is both lightweight and strong. It has a thumb grip for a more accurate cut, and a bi-material soft grip for comfort. The saw has an adjustable thumb dial tension mechanism inside its handle, and this spring loaded tension device gives up to 150kg blade tension for ease of use. Supplied with a bi-metal blade (24 tpi). Specification Cutting Capacity 12cm (5in). Tension 150kg.