Claw Hammers for Working at Height All Secure Tools claw hammers for working at height are fixed with an attachment to improve safety. Choose from our range of heavy-duty claw hammers to find the size you need, and know that yours will come with just what you need to secure the tool and prevent it from falling. A claw hammer is a carpentry hammer that is used to drive nails into or pull them out of wood. It's a multipurpose hammer that's found in the toolkits of everyone from novice DIYers to huge industrial contractors. Secure Tools are a well-trusted distributor of high-quality, low-cost tools for working at heights.