HomeMachine KnivesSlitter Knives DM86740 Slitter Knife 3.105″ outside dia. 2″ inside dia. 7/32″ hub thickness 56-61 Rc hardness Available in chrome vanadium steel or semi-high speed steel (for higher wear resistance) Package Qty 12 Weight (lbs) 0.180 Weight (kg) 0.082 Product UPC