I notice the ad Tim posted shows a different configuration of the "clutch" than the ones I've seen, which are like the
McM-C one .... maybe the ad is from when they were first designed and the style that ended up in actual use was simplified?
I've chipped off the corners of a slot screwdriver tip on a tough clutch screw, but I've also gotten a lot of them out that way in the field when I didn't have the right screwdriver with me
Bill
