I've just got a guitar off someone last night to try a repair on.
Its a young guy(12) who's parents bought him a new guitar for Christmas.
Its a Squier Strat. The tremolo has been snapped off and the threaded part is stuck inside the unit.
It was the young guys mother that screwed it up too tight believe it or not.
I suspect that the boy has commented to his mother that the arm is always loose when he tries to use it, and not knowing the ptfe trick he's asked her if she can sort it, and with her gorilla like grip, she has snapped it off.(hm, glad she's not my wife )
It has snapped off way down into the unit and the only way I could possibly get it out is to drill a hole and try jam a screwdriver or the like in and see if it'll move. No luck with that so far, so I had to strip the unit right down to the part that screws onto the bottom of the unit(silly me thought I'd get away without a strip down). I've left it soaked with WD 40 overnight and I'll try some heat on it today and see if it'll free up a bit.
It's not looking good. I reckon I'll need to see if I can purchase the part itself and not a whole unit.
Ideas anyone???????