Can anybody give me some tips to make guitar squeals, i watched dimebag but can't understand how he do it, please give me some tips.

thanks for read
there is probably many ways to make your guitar squeel but here is how i do it:

1. make a pinch harmonic or a natural harmonic.

2. use your whammy bar.

If you don't know what a pinch harmonic is i recommend that you search it, I bet there is many instructional videos about them here on UG.

If you still don't get it then search divebomb because i think that is the sound you mean.

Keep on rocking.