Quality complies to German DIN 838 standard and B/ISO 3318 specifications.
Drop forged from Chrome Vanadium Steel, heat treated
Satin chrome finish for corrosion protection
Polished bi-hexagon ring and jaw offset at 150
Off-set 12 points ring spanner with 15 degree offset angles are designed to provide access to nuts or bolts with some type of obstruction, apart from permitting a solid grip for the hand by means of their angle. This type of wrench has a different box end size on each end. The 75 degree angle is recommended for applications in which the nut or bolt is in low relief, ideal for when there is not much space in the height parallel to the spin axis of the part.
Length are longer than normal ring spanners, specially for those small sizes, please check following dimension table: