Jet Unbreakable 30" Handle Sledge Hammer, 10LB Head -- Unbreakable handle is made with tempered steel, and surrounded by heavy-duty molded rubber. Ergonomic handle absorbs shock, ensures comfort and has a slip-resistant grip. High-visibility head adds instant identification under any job site conditions; encourages safe work habits. Not to be used to strike any object harder than 46HRC. Never replace a sledge handle again! Outlasts wood and fiberglass handle sledges by thousands of strikes