Stanley curved claw hammer fibreglass shaft stanley 1 51 628 this stanley curved claw hammer has a heat treated forged high carbon steel curved claw head the head is fully polished and rim tempered for durability and safetythe fibreglass handle absorbs shock and vibration and the textured rubber ensures a comfortable secure grip570g 20 oz stanley 1 51 628 curved claw hammer fibreglass shaft 570g 20oz