Our non sparking striking convex box wrench have passed ISO9001 and UKAS, high quality and competitive price .

This striking convex box wrench is  non-sparking tools , it is made 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 : 17~150mm ,  5/8"~ 4-1/8"

We 're manufacturer which is specialized in producing non sparking tools , special steel tools and non magnetic tools .And all of our tools have passed ISO9001 and UKAS. 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.