Hareline Brassonic Discs

These discs are primarily used to add weight and stability to your tube flies. By placing them at the front of the tube, they help the fly sink faster and create a more distinct profile in the water, which can trigger more aggressive strikes.

They are designed to fit standard fly tying tubes, but compatibility can depend on the outer diameter of the tube you are using. It is best to ensure your tube size aligns with the inner diameter of the disc for a secure, snug fit.

Brass provides a reliable, consistent weight that helps your fly track correctly in the current. Unlike lighter materials, brass ensures your pattern gets down into the strike zone quickly and maintains its swimming action.

While a tight friction fit is often sufficient, many tyers prefer to use a small drop of head cement or super glue to ensure the disc remains locked in place during casting and retrieval. This prevents the disc from sliding or rotating on the tube.

Yes, they are versatile enough for various sizes. While they are a staple for larger streamers where sink rate is critical, they can also be used on smaller tube patterns to add subtle weight without significantly altering the fly's overall silhouette.