Wera 391 Hose clamp Kraftform flexible shaft screwdriver, HEX 6 mm x 167 mm, 05028148001

One of my favourite tools you can’t get enough purchase to over tighten hose clips and the flex shaft allows you to drive off centre. Should have brought a set of these earlier far better than sockets or screwdrivers.Get a 6,7 and 8 mm to cover most clips.