This 1500g Machinist Hammer features a high-grade steel head and a handle bonded to the body for durability. It boasts a high-quality, unbreakable fiberglass core. Ideal for blacksmithing and engineering tasks, this heavy-duty hammer is built to last. Includes a 1-year warranty. Handle bonded to body, High Quality Unbreakable Fibreglass Core, High Grade Steel Head.