Double open end wrench

This doubleopen end wrench is non-sparking tools , it ismade of copper-aluminum alloys (Al-Cu )or copper-beryllium alloys (Be-Cu ), they are widely used in the dangerous environments with many latent fire and explosion danger , such as petroleum ,chemical industry ,electronics , railway , shipbuilding , gas production and etc. We have both metric and inch size : 5.5*7 75*85mm, 1/4*5/16 2-3/8*2-3/4" We 're manufacturer which is speciallized in producing non sparking tools , special steel tools and non magnetic tools .Should any of these item be of interest to you please let me know. We will be happy to give you a quotation upon receipt of your detailed requirements.