Pye Tools Pvt. Ltd. Offers Rugged Double Open End Jaw Spanners. Pye Tools Pvt. Ltd. Is ISO 9001: 2000 TUV certified company that also manufactures Hand tools, pliers, screw drivers etc. Rugged Double Open End Jaw Spanners are made from Chrome-Vanadium Steel .The Rugged Double Open End Jaw Spanners are used for fastening of nuts. The Rugged Double open end jaw spanners are chrome-plated to resist corrosion and easy to clean.