14KGF Gold Filled

Size: Approx 3x2x2mm (+/-0.5mm)
Tube hole inner diameter: Approx 1.3mm
Color: Gold

This is a Gold Filled tube.
Gold Filled is a material where 14K gold is pressure-bonded to a base metal (brass).
If the weight of the gold constitutes 1/20 or more of the total weight, it is called Gold Filled.
The surface is entirely 14K gold due to the pressure bonding, but by using brass for the invisible core (which does not touch the skin), it offers a more accessible price point. Therefore, its appearance is similar to solid gold parts and differs from plated parts. It is also more durable (less prone to peeling) than plating.

When we tested with wires sold in our store, 16GA (Approx 1.3mm) passed through, but 14GA (Approx 1.6mm) did not.

[*The grid used in the image is 1cm x 1cm.]