Ingco G Clamp 5 (125mm) HGC0105 Malleable Cast Iron

Our review

This is a 125mm (5 inch) G clamp from Ingco, the HGC0105, built around a malleable cast iron body with a T-shaped thread. It is the sort of clamp a home woodworker, furniture repairer or small workshop reaches for when gluing joints, holding a workpiece to a bench, or pinning metal while drilling or welding. The 125mm opening suits small to medium jobs rather than large cabinet panels, so measure the thickness you actually need to span before ordering. Malleable cast iron tolerates knocks better than brittle grey cast iron, but it is still a casting, so avoid dropping it or over-tightening past the point of firm resistance. The T-shaped thread is the part that does the work, so check it turns smoothly and that the swivel pad sits flat against your material. Compare against similar 125mm clamps from other brands on jaw depth, thread type and body material, and consider whether you need a deeper throat or a quick-release bar clamp instead. Available on Sokonia.