Machinist Hamme: 1. 45# carbon steel,sturdy and durable 2. German machinist hammer 3. All sizes Machinist Hamme:1. 45# carbon steel,sturdy and durable2. German machinist hammer3. All sizes Hammer:1)Machinist Hammer;2)Nail Claw Hammer;3)Nail Claw Hammer with magnetic head;4)Engineer's hammer;5)wooden handle or fiber handle,head is 45# carbon steel. Machinist Hamme with wooden handle