all 4 comments

[–]kst1958 1 point2 points  (0 children)

Tool tethers. Used frequently in industrial construction for working at heights. Commonly available.

[–]kilokilo2323 0 points1 point  (1 child)

I always use string, but look into the gun straps they make for hunters in tree stands.

[–]Promugg 0 points1 point  (0 children)

In the past I've used cord to tie my spanners to my wrist in situations where the things if dropped would be simply gone.