G Clamps (also known as C-Clamps) are versatile hand tools used to hold, secure, or clamp workpieces firmly in place during operations like welding, carpentry, drilling, or fabrication. A G clamp has a G-shaped frame with a threaded screw mechanism that tightens against the object, providing strong and stable holding pressure. They are widely used in construction, workshops, woodworking, and metal fabrication.