i always try a torx bit 1st as they can some times be knocked in with a persuasion stick. can also try to get the bolt as hot as possible with a soldering iron, if its in chassis or cs head i do as dale and drill the head off as last resort.
main thing, good quality drivers
sparing use of loctite on builds and blue not red
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MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD
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