2.7 kg, 3.6 kg, 4.5 kg and 5.4 kg
Common Characteristics
- Sledge hammer with convex (domed) striking face
- Special heat treated head with a soft striking face and with a hard core
- The soft striking face avoids fractures or chipping and the hard core safeguards the head to the handle
- The unbreakable handle is made of rubber reinforced with a high carbon steel spring rod
- ANSI/HTI B173-1991, ASTM A576 (head), ASTM A421 (handle)