Cannot remove the cassette even with the right tools

[OakLeaf]

+1 on getting an angle that lets you put maximum torque on both tools. 30° sounds reasonable, or maybe a little wider to let you get your hands where they need to be. Experiment with the chain whip in several different positions relative to the wrench/socket handle.

How long of a handle are you putting on the lockring tool? Try a breaker bar of at least 12", longer if you have one, or your longest all-sixteenths (adjustable wrench).




And, tangentially, one inch for the Park Tool Shimano cassette tool? WTF is up with one inch when ALL the other parts and tools are metric? Are other brands, or Park Campy cassette tools, also one inch? Like, I had a bunch of SAE tools from when I used to ride a Harley... and the fasteners on the garden tractor are SAE as well... I had 1-1/4", 1-1/8," 15/16", but I never, ever had a call for a one inch socket. The first cassette I replaced I was able to make do putting a deep well 27 mm air-wrench socket on my torque wrench - definitely not an ideal situation.