Precise Triple Square Geometry – The triple square (also called XZN) tip is machined to precise tolerances, Optimal Two-Piece Design – We use separate steel alloys and processes for the bit and socket, resulting in a higher performing tool than one-piece designs, Permanent Connection – The bit is pressed directly into the socket for a permanent connection that won’t loosen over time or under stress, Two Size Markings – The size is marked with a high-visibility laser marking and a permanent stamped marking that won’t rub off, Friction Ring or Detent Pin Anvils – Smooth walls inside the drive end and a detent pin hole make the bit sockets compatible with both drive tool anvil types.