Good Quality 2mm Allen Key

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Site Supporter
Oct 26, 2014

Can anyone recommend a really high quality 2mm allen key please ? Is hardened steel the right material for this ?

I have to remove a stainless steel grub screw that holds a plastic/ metal control knob onto a brass shaft on a polti vaporetto steam cleaner. This thing will have been heated to 100 degrees countless times and may well have some rust/ corrosion/ limescale bonding the two bits together. It has rounded both ends off a standard allen key. I can't heat it or cut a flat head into it as that would destroy the plastic knob it sits inside

There is plenty of space around it so I could go for a screwdriver/ right angle allen key/ standard sized replaceable bit …..