The G-clamp is a general-purpose clamp that is widely popular among DIY woodworking enthusiasts. Shaped like the capital letter “G”, the upper edge of the G-clamp acts like a jaw while a threaded screw, which goes through a hole at the bottom of the tool, acts as a second jaw for clamping workpieces.

G-clamps come in a range of sizes that are designed for varying levels of duty. Smaller G-clamps are usually used for light-duty work like minor repairs, while larger G-clamps are used for heavy-duty work like sawing and drilling.