Wish I had a dollar for every nut or bolt I drilled using these – even for every drill bit I broke! In the aircraft industry we had jigs beautifully, and expensively, made in-house but in the hands of an apprentice even they were somewhat problematic.
The few I see on eBay look a bit cheap and nasty but I wonder if anyone has purchased similar units and how successfully they operated. Thanks.
Safety Lock Wire Drill Guide Bolt Heads Thread NUT Bolt Drill JIG KIT | eBay