Money well spent even supposing you only use them once!Or better still these allow internal and external with removal and replacing facility.
I tried that. Looked in a kitchen drawer and found a Rocktrail lock knife. It popped it out amazingly after many screw drivers failed.Would a quick release chain link tool do the trick?
I bought a set of four on ebay for about eight quid. Screwfix do a kit with four different jaws for under a fiver. It's far better than faffing about with small screwdrivers etc , and then watching the clip flying off through the air to somewhere where you can't find it.Buy some circlip pliers. Always useful.