Fein\'s most popular Saw Blades. The Bi-M Universal Blades feature a waved geometry similar to that found on hacksaw blades. This makes them ideally suited to cutting both wood and mild steel. The Bi-Metal corrugated universal teeth have a wide range of applications. These include Sheet Metal (up to 2mm thick), Aluminium Profiles, Copper Pipes, Wood, Plasterboard & Plastics.  These are ideally suited for use in cutting under door frames and sawing through work pieces where harder material can be hidden such as nails or tacks. Be aware, these blades can become blunt if contact is made with masonry, but for an extremely versatile blade to accompany the already versatile machine, there is no better match!