A combination spanner is a hand tool designed for tightening or loosening fasteners—typically nuts and bolts—with a 38 millimeter head size.
Description
_One open-end (U-shaped) for quick turning access in tight spaces.
_One ring-end (closed-loop, often 12-point) for a more secure grip and higher torque application.
_It is commonly made from chrome vanadium steel, offering durability, corrosion resistance, and strength.