S.U.R.&.R.'s TC60 Automatic/Ratcheting Tubing Cutter is an innovative design that allows you to tighten once and the spring loaded cutter does the rest. Product Features:Ratcheting action handleRemovable cutting headEasily cuts 3/16-5/8 tubingSpring loaded; tighten once and cut tubingReplacement Blades Available (PN# TC60B)