Secure engagement easy to use and fast parks cassette pliers cp 1 quickly grip cogs from 9 to 24 teeth with no manual adjustments a great shop tool the cp 1 is 137 35cm long and can be used with one hand to hold any 5 to 11 speed cassette solidly during lock ring removal forged steel construction with a spring loaded return and comfortable dual density grips its an essential tool for any bike builder