2- Golf Clubhead Preparation

This is extremely important if you are going to use a graphite shaft.  Any sharp edge could wear on the shaft and eventually cause the shaft to break.  Your clubhead just might go farther than your ball.

Many clubheads these days come with a countersink on the end of the hosel.  If you happen to buy one that doesn't, you will need to put one on yourself.  This is a very important part of a custom golf club build.

Looking at the cross section of a hosel, below, you are trying to achieve the look of the hosel on the left.  Note the arrows pointing to the bottom of the countersinks.  The one on the right has a bit of a sharp edge which will cause a stress point on the shaft.  The image on the left shows a smooth transition from the countersink to the hosel bore.

Use a drill with a countersink bit and drill down while at the same time moving your drill around in a circular pattern.  This is so that the bottom edge of the countersink will be rounded over and there won't be a sharp edge. 

Drill just deep enough so that you reduce the thickness around the top edge of the hosel by about half.

Next, your going to want to make sure there aren't any sharp burrs deep down inside the hosel.  Take a small wire brush and run it in and out and also spin it around inside the hosel.  This not only gets rid of anything sharp, it also leaves some dull scratches for the epoxy to adhere to.

Like I said before, many clubheads come with a lot of this work already done; but, it is a good idea to fully inspect them before moving on to the next step. 

You are now ready to move on to step 3.

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