failure according to the returns we receive from customers. Shaft companies and component supplier will not warrant these types of assemblies.

3. Always make certain that the head you are using has been properly countersunk or coned approximately 20 degrees. This coning eliminates any sharp area where the shaft flexes at the top of the hosel, potentially reducing the probability of shaft breakage. Note: All Hireko heads are countersunk at the foundry, thus eliminating this step when using our heads.  However, it may be necessary when re-shafting older clubs or ones that the hosel had to be re-bored.  Some heads may be counter-bored, which may require the use of special collared ferrules.

4. Always abrade the shaft tip the entire length of the insertion depth of the head.  If the head requires a ferrule (like most do), you can continue abrading to position ½ way up inside the ferrule. Sandpaper by hand using a “shoe shine” method works well as does a special graphite