Bolt drilling

[voodoo]

I wondered about that but it's a pivot bolt used on a universally-sided (if that's a word :-?) mount so it's normal thread. I'll be investing in some better drill bits now I'm back to the real world after the holiday

[mick_benson]

i've got some easy-out's you could use once you have drilled hole if that helps,
got drill's too if you want to pop over could have a go

[voodoo]

thanks for the offer essex, much appreciated. I'll be having another go in the week so I'll be in touch

[wheelers]

take it steady as too much frce might crack or snap off the casting. progressivly open out the hole until you can pick out the thread