I only used, and was extremely satisfied with the Park Mini Chain Tool (https://www.parktool.com/product/min...hain-tool-ct-5) for several decades until we added an 11-speed chain in the house. The Mini tool has the feature that turning the pin until it stops would push out an 8-speed pin exactly the right distance. Plus it has the chain loosening cradle. I was disappointed that the fancier Park (3.2, I think) doesn’t have that cradle anymore, but it works on my wife’s 11-speed.