A Spiro frame well-suited for building and construction jobs for the professional worker as well as the serious hobbyist.Equipped with 3806-600-32 blade 32 TPI.For cutting ventilation tubes, thin-walled steel tubes, soft metal reinforcement bars and aluminium joists and beams.Made of strong, cold-drawn steel tubing.Equipped with a 32 TPI 8% cobalt Bi-Metal blade (3806-600-32)