Green Mountain ChainMate Survival Camping saw, previously manufactured for the United States Armed Forces Special Task Ops Unit. Now available to the public for camping, trimming and other outdoor activities. Made from a special patent carbide diamond tip STEEL. Engineered with a special patent bidirectional cutting system. Great for emergency’s and leisure activities. Invented, Patent, Engineered & Manufactured in or Norwalk, CT Factory since 1972. We are the ONLY United States Manufacture of this product. Also the Only Manufacture of this product in the entire World other then a cheap Chinese knock-off. Sold in All 50 USA States & in 20 Countries ALL over the Globe. No other Chainsaw in the World stands up against a Green Mountain made.