I've been using the site you guys suggested for surplus rifles. I'm inspecting my new Enfield and am stumped on a disassembly step. In step #11 (http://www.surplusrifle.com/no5/boltdisassembly/index.asp) they suggest the use of a tool I've never seen before to remove the firing pin. Is this necessary? Is there something more common I may have in the tool box that may work? Thanks!