Need an ultra-thin parting tool? Got an old bimetal hacksaw blade kicking around? They make perfect parting blades, and can be used for snap-ring grooves too! Especially useful on smaller machines with less horsepower like the 7x12 mini lathe. Just cut or break into suitable lengths, grind or sand the teeth off, grind a profile on the end, et voila! .025″ parting blade! The disc on my fingertip is .015″ thick, .250″ diameter.