Mole Grips/Locking Pliers

[leafspring]

I've ordered these for now

http://www.amazon.co.uk/gp/product/B000X2B3DS/ref=...

Mainly used by me for sheered screws, clamping components etc

The cheap ass sets supplied at work twist and misalign when you clamp on, will these do the same or are there any recommended quality items... budget around £30

[leafspring]

I did notice that

I'll get a set of the Irwin ones too... you can never have too many tools