Spear & Jackson SJ-BPH40 Engineers Ballpein Hickory Hammer 40oz The Spear & Jackson SJ-BPH40 is perfect for striking metal objects more safely. Its polished ball end ensures more consistent metal shaping and its hardened & tempered carbon steel head make it extremely durable. Features: Polished & chamfered striking face to avoid chipping Polished ball end for more consistent metal shaping Heat treatment in general accordance with BS876 ensures no soft spots on the striking face Head and handle assembly in general accordance with BS876 ensures no loose heads Hickory handle Metal wedge Specification: Head weight: 40oz Length: 390 mm