The product is a Tweco El16Rzt52 El16 Series Contact Tip with a diameter of .058 inches.

Long Life Eliminator® Style

0.375" (9.5 mm) Outside Diameter

1.50" (38.1 mm) Overall Length

WIRE SIZE (IN/MM) .052" (1.3 mm)

TIP I.D. (IN/MM) .058" (1.47 mm)

TIP STYLE Tapered

TIP SERIES EL16RZT