The Mac Tools 3-pc and 4-pc Trigger Release Locking Pliers, Nos. MLPTR3SET and MLPTR4SET, are made out of high-grade steel for durability and performance. The pliers feature a hex screw that allows for fine-tuned adjustment and controlled release, and the classic trigger release is designed to maximize locking force. The trigger grip on each of the pliers is dipped for a more comfortable feel and easy identification. The sets are available in red, green, and orange.