Irwin Vise-Grip The Original 6R locking C-clamp pliers offer a 2-inch (50mm) clamping capacity, ideal for reaching into tight spots and holding small items securely. Constructed from high-grade heat-treated alloy steel for maximum toughness and durability, these pliers feature the classic trigger release designed to provide maximum locking force. The turn screw adjustment allows you to fit work and stay adjusted for repetitive use. While new in the original packaging, the tool shows some minor surface oxidation from storage.