This Geepas double-ended ring spanners (also called wrenches) are designed for use with hexagonal metric nuts and bolt heads. Mirror polished construction provides durability. The offset ring provides improved access to recessed and hard-to-reach areas. The spanner has a 12-point opening that fits onto the fastening at more angles for improved access in areas with limited swing range. Convenient to be used for tightening and loosening bolts, nuts and others. These wrenches come in various sizes and single/multi pack variations. Choosing the right size of your wrench ensures the highest working efficiency and protects the screws and nuts. Ideal for repairing automobiles, industrial use, assembling furniture, building renovation, and other mechanics works.