Attributes . Excellent Electrical Properties, Twist-it and Forget It, Twist it and it Locks in Place, No Threads to Worry About, Increased Surface Contact Between Contact Tip/diffuser for Better Electrical Conductivity, Double Tip Life, Twist it Quarter Turn Clockwise, When Tip Wear Point is Reached After Use, Twist it Half Turn Counter-clockwise to Expose a New Wear Point, This Doubles the Life of the Tip, Thick-walled Diffuser Design Acts as "heat Sink" and Conducts Heat Away From the Arc Source, Increases Electrical Conductive Surface Area and Thereby Increases Electrical Conductivity . Names