Campy chain ring installation question?

[shinomaster]

I'm wondering if you are supposed to use a special tool to undo a Chain ring bolt on a record 10 crank. It spins around and seems like it needs a screw driver in the back to hold it still, or do I need some crazy $50 campy tool? I never had this problem on my Ultegra cranks. Just wondering..

Poor helpless me.

[Tom]

You need a screwdriver with a really, really wide blade or a better tool than the $5 Park tool that looks like a cheap can opener's cousin. I have to grind off the little tab some before it'll engage the slots well enough.

[caffeine power]

Put some grease on the threads/interface helps as well. Rarely have I had to use a tool to hold Campy chainring bolts. Or any brand bolts for that matter.