Saws are usefull not so much for precision as SAFETY. I own and use an axe. Please review Dougs comments on the things in a survival situation.Then Buy Mors Kochanski's excellent BUSHCRAFT book and get religon. The wire saw can have a use beyond the space in a Altoid tin. if you don't find that use go with something else. I have the Pocket Chainsaw in my larger pocket kit. When I go up in a sailplane it's a perfect compromise.I haev enough trouble bending my long legs into the cockpit. I am not about to lug a 28"- 4 lb axe or bowsaw in there too.