Spigot Ferrule explanation

One of the most common misunderstandings relating to rod ferrules is the spigot pattern. See image 1.

There are three main ferrule joint patterns:

  • Over Fit where the top section slides over the lower.
  • Push in where the top section inserts and slides into the lower.
  • The spigot ferrule is the one we are asked the most questions about.

The spigot ferrule is the one that we are asked the most questions about. The common misconception is that the two sections must butt up tight against each other without a gap

Wrong!

The principle of a spigot taper fit ferrule is leaving a gap of approx. ¼ to ½” to allow for gradual wear in normal use over a period. See image 2

Jamming the two sections together to make the gap go away will either wedge the two parts together for all time or ruin the spigot joint.

If the two sections close without a gap, then the spigot is worn and the top section will not tighten or will come off when casting. See image 3

The unofficial fix for this is to file or gently hacksaw off perhaps 5-10mm off the top section and this will recreate a tight fit again with a gap. This solution is commonly used on glass fibre rods that have had a long and industrious life.

If you ever have any issues or problems with any rods purchased from Thomas Turner please get in touch and we will work to resolve them.