I HAVE this, and I've used it to install a WIAG-01 in an Inspiron 6000. Do NOT use it on your laptop. The Phillips head is very pointed and liked to slip out of the groove, threatening to strip the screw. The bits in general like to wiggle around in the tool slot, giving you an unsteady hand.
It's fine when you're screwing with desktops where screws are a dime a dozen, but when you're working on a laptop and all the screws you have are the ones in the chassis already, get something more steady and less prone to slippage, 'cause this thing ain't it.
The Torx bits are flat, so there's little chance of slippage there....but the Phillips head is iffy.