Features: Suitable for general construction and civil engineering work. [Specifications]; Nominal Size: 4 lbs; Head Diameter: 1.9 inches (47 mm); Head Length: 5.1 inches (130 mm); Total Length: 17.3 inches (440 mm); Weight: 4.5 lbs (2.03 kg); Material: Head: Carbon steel; Handle: Oak; Uses: General construction and civil engineering work. For loading anchors, surveying nails, etc.