a band saw which uses a continuse band of metel, it can be used for cuting a range of shapes including curves and bends. Band saws are ysed for cutting mainly wood but are allso used in other industries to cut metel and even meat. This is a powerfull tool that involves high stresses that could be a harzard to the user and others in the workshop, safet precutions should be taken such as using earmuffs eye protection and leaving plenty of room around the machine while it is in use.
safety and ohttp://www.youtube.com/watch?v=FNa1_tcDo1g
information: http://en.wikipedia.org/wiki/Bandsaw