Beryllium-copper gas wrench.
This is, I'm pretty sure, a wrench designed to operate various valves on natural gas equipment. As such it makes sense that it is made of non-sparking beryllium-copper alloy. Source:eBay seller 69chuck69auctioneer Contributor:Theodore Gray Acquired:16 April, 2009 Text Updated:17 April, 2009 Price: $30 Size: 12" Purity: <5%
