Ferrules
Ferrules are the small rings at the transition between shaft and clubhead that finish the joint cleanly.
The ferrule sits directly above the hosel, that is, the sleeve into which the shaft is glued. Its main task is optical and craft-related: it covers the glue joint and ensures a smooth transition without an edge. Ferrules used to be made of real materials; today they are almost always made of plastic. They have no influence on the ball's flight, even if they give some clubs a distinctive look. Some manufacturers use coloured or ring-striped ferrules as the identifying mark of their models.
In practice you notice ferrules above all when something is not right. An example: after a round the small ring on the 6 iron slides a little way up the shaft and a glue joint peeks out. That is no disaster, but a sign that the head can come loose. The club belongs in the workshop, where the shaft is re-glued and the ferrule is pushed back on. Whoever tinkers with it themselves risks a flying clubhead in the middle of the swing, which can become dangerous on the course.
The typical misconception is the idea that the ferrule stabilises the club. It does not; the glue in the hosel alone carries the connection. Also popular: playing on with a loose ring out of convenience. Take the club out of the bag until the repair is done. A slipped ferrule is the earliest sign of an ageing glue joint and costs little in the workshop.
FAQ
Does the ferrule influence the flight or the performance of my club?
No, the ferrule is purely optical and craft-related: it covers the glue joint between shaft and hosel and ensures a smooth transition without an edge. The connection itself is carried by the glue alone, not by the small ring. Some manufacturers merely use coloured ferrules as the identifying mark of their models.
What do I do if the ferrule on my iron has slipped?
Take the club out of the bag and take it to the workshop, because a slipping ferrule is the earliest sign that the glue joint is coming loose. There the shaft is re-glued and the ferrule pushed back on — a small job that costs little. Playing on risks the clubhead coming loose in the middle of the swing and becoming dangerous on the course.
Can I glue a loose ferrule back on myself?
Do-it-yourself is not advisable, because the connection in the hosel has to be aligned and glued professionally — a crookedly glued head changes alignment and feel. The repair at a golf club workshop is quickly done and inexpensive. Until then the club does not belong in your bag.