Lockring and chain whip tools are definitely occasional use tools but they are also tools that if not quality cause unnecessary wailing and gnashing of teeth. I suggest what I have - Hozan lockring tool and Park SR-2 chain whip. I swapped out the chain portions with 1/8th but kept the pieces around if I ever need 3/32. It only takes a minute to change it around. Both I consider "best of breed" tools. They make life easier and are worth their asking prices.