SMA Gun Block Practice Test

A tool that has both an open-end grip and a box-end grip in one tool is a combination wrench. The open end lets you slip onto the fastener quickly from the side, which is handy in tight spots or when you need fast adjustment. The box end surrounds the head, providing a snug grip and better torque, which helps prevent rounding when you’re tightening hard. This dual-ended design means you don’t have to swap tools to switch between quick placement and secure tightening, making it the most versatile choice. A socket is used with a ratchet and isn’t a single tool that combines both ends. An adjustable wrench has movable jaws but no box-end head. A generic wrench doesn’t specify the dual-ended design. So the combination wrench is the one that combines an open-ended wrench with a box end.