These Craftsman® locking pliers have an easy-release mechanism for a one-handed operation. Their multizone handles have bi-material grip for added comfort and an increased control. Their high grade heat-treated alloy steel composition confers strength and durability. These pliers' adjusting screw is for adjusting the jaw opening and locking pressure. This tool is ideal for carpentry, DIY projects and MRO as well as electrical, mechanical and plumbing applications.