With rugged drop forged frames and deep throat depths of 2, 2-3/4, 3-5/8, and 4-1/2-inches, the WILTON Spark-Duty 400CS Hi-Vis C-Clamp Kit offers superior holding power for larger workpieces, making these clamps the ideal choice for professionals or avid hobbyists alike. The unique V-grooved anvil improves gripping of flat and rounded surfaces for extra security in a multitude of situations. This kit includes a full range of sizes, 2, 4, 6, and 8-inch clamps for extra versatility when working on a broad variety of regular and light-duty projects. The copper-plated ACME rolled spindle with replaceable Perma-pad swivel head resists corrosion as well as weld splatter to deliver outstanding performance in demanding environments. A high-visibility finish ensures the Wilton C-Clamps are easy to find in your tool box.