I stuck a Chinese knockoff Squirt in my BK10 kit in order to have something to take the filister screws out when removing the handles. The straight screwdriver twisted like a corkscrew. Complete crap. Bought a Leatherman P4 and it works great. My suggestion is to torture test the knockoffs first. If they work well then use 'em. At least you won't have to find out the hard way if they are junk.