Definition of TiN (Titanium Nitride) PVD coating for industrial blades: a gold-coloured ceramic coating that reduces friction and extends knife life 20–30 % on general-purpose slitting and shearing.
Definition of wedge angle in industrial cutting: the included angle between the front and back faces of a cutting edge, and how it balances edge sharpness against edge strength.
Definition of wire edge in industrial cutting: a thin, fragile burr on the very tip of the edge caused by a re-grind with too fine a wheel or no spark-out.