So I'm using this toggle clamp as a hold down for my custom made tablesaw miter fence. I tried the Harbor Freight knock off of this and it didn't perform as well. The metal is thinner on the HF version which allows the clamp arm to move side to side in full clamped position , which could cause inaccuracy in the cut. With this MSI product the steel is thicker and it holds steady when clamped. No side to side or lateral flex in the arm on this one.