High-Rise Clamps are designed to firmly secure larger workpieces. These assemblies are equipped with Slotted-Heel Clamp Straps that have a slot on the underside to allow for easy loading. On each side of the clamp there is an indentation to provide a secure finger grip to retract the clamp. Furthermore, they are furnished with a standard sized radius nose to ensure firm contact with the workpiece. The modular design permits these clamps to be stacked with riser blocks and spacer blocks to increase their height. Available in 5/16 - 18, 1/2 - 13, and 5/8 - 11 thread sizes, these clamps are proudly made in the USA.