The majority of tools today do not come with clean connection points for tool tethering. Life would be much easier if all tools were built like this adjustable wrench. For those tools that aren't build like that, Squids Tool Connectors give you a manageable way to safely tether your tools.
To apply squids tool shackle you'll need the appropriate size shackle, a pair of pliers to tighten the crossbar, and thread adhesive to secure the crossbar.
Before application, know and document the anatomy of your tool by weighing it and measuring the diameter. Consult the shackles table in the product instructions, or online, to determine the appropriate size shackle to use. Make sure the surface of the tool is clean and dry before application. For this combination wrench I'm using the 3790M, because it fits over the body of the tool, but will not slip off either end. To apply the shackle, unscrew the crossbar and set it aside. Slide the U-shackle around the neck or the waist of the tool, depending on the tool type. Apply thread adhesive to the threads on the crossbar and reconnect.
Use a pliers to firmly tighten the crossbar. Make sure the shackle will not slide off either end of the tool. Once finished, you've created a secure connection point for a tether.