AnF-clamp, also known as abar clamporspeed clampand a "G-clamp", is a type ofclamp. The name comes from its "F" shape. The F-clamp is similar to aC-clampin use, but has a wider opening capacity (throat). This tool is used inwoodworkingwhile more permanent attachment is being made withscrewsorglue, or inmetalworkingto hold pieces together forweldingorbolting.
An F-clamp consists of two horizontal bars joined together by a vertical bar. There is a large screw on the lower bar to allow for the clamp to be tightened.F-clamps are adjustable which allows for them to be used on larger scale objects without the need for a large screw.