Product Material: High-quality Cast Steel
Heat Treatment Hardness: HRC45-52
Product Features: Hardened and thickened, non-slip and non-tooth-breaking, sturdy and durable
Product Usage: A manual tool used to tighten bolts, screws, nuts, and other threaded fasteners, as well as to hold bolts or nuts in place in openings or sockets using the lever principle. Commonly used for fastening between the tool post and the nut.