Easy to use with reversable pin, and used to disassemble chains from single to 11 speed chain.
Rotate handle counterclockwise until de-riveting pin clears chain cradle
Place chain on chain cradle and align chain rivet with de-riveting pin
Cover chain with thumb and hold down for safety. Rotate handle clockwise until de-riveting pin tightens against chain rivet
Check for appropriate contact position and continue rotating handle clockwise to remove chain rivet
Release handle and inspect chain for successful rivet removal. Remove chain from tool and separate