Not all old Shimano freewheels but yes most do (and I think the OP's freewheel is one with that interface) and it's a good system. I have a stuck Shimano freewheel that takes a different tool that was original equipment on a 1985 Cannondale. I have a 15 inch crescent that usually does the trick along with a tightened down freewheel remover but not this time. I may need to bring it to the collective to have access to a vice.