This high-quality, heavy gauge shear from Durston operates with a hand bar that is separate from the cutting blade, resulting in a straight, even cut up to 300 mm (11-3/4") without distorting the metal. The precision-ground, hardened and tempered cutting blade cuts non-ferrous metal up to 4 mm thick (8 gauge) and mild steel up to 2.5mm thick (12 gauge). The blade can be turned up to four times before it needs to be sharpened. The ruler is easy to read and adjustable; the table supports the metal being fed into the blade, resulting in a clean, square cut. The extra-long hand bar gives added leverage that greatly increases the ease of cutting. The blade is perpendicular to the hand bar for an unobstructed view of the cutting path. This strong and durable shear is constructed of all steel, and mounts to any work surface.