Imperial Combination Spanners, Hardened Steel

Open end profile is designed to allow greater accessibility & turning arc versus standard pattern combination wrenches. Ring end is thin walled with a high relief zone for greater access to recessed and hard to access bolts. Open ends have mechanical characteristics above and beyond NF ISO 1711 - 1. Ring ends are designed to outperform Aerospace SAE AS 954E Standards
Ring head angle - 15°
Open end head angle - 15°