metalsåg

Metallsåg is a hand tool used for cutting metal, most commonly in the form of a hacksaw. A hacksaw consists of a slender, replaceable blade clamped in a rigid U-shaped frame. The blade teeth are small and set to cut metal, and the blade is kept under tension to prevent bending during use. Blades come in several lengths and tooth configurations, with more teeth per inch providing a smoother cut in harder metals and fewer teeth allowing faster cutting in softer metals. Bi-metal blades, which combine a flexible backing with hard tooth tips, are common for longer life.

The tool is used to cut steel, aluminum, brass, copper, and other metals, including pipes, bars, and sheet metal. The workpiece is secured, the line marked, and a straight, steady motion is maintained. Lubricants such as cutting oil can reduce heat and wear. Proper technique includes keeping the blade perpendicular to the work and avoiding excessive feed pressure that can dull or break teeth.

In addition to the traditional hacksaw, there are power metal-cutting saws such as reciprocating saws, metal-cutting circular saws, and bandsaws that can handle similar tasks with greater speed. Metallsåg techniques remain common in plumbing, electrical work, and metal fabrication, particularly for precise or on-site cuts. Maintenance includes replacing dull or damaged blades, keeping tension correct, and storing blades dry to prevent corrosion. Safety practices include securing workpieces, using guards where available, and wearing appropriate eye and hand protection.