Like a lot of golf questions that I get, there is not always an answer that is “official” and easy to document. So here is what my research has come up with on this “golf club” question about the putter. If you find something different, post it here in the comments or write me at thegolfnut@the-golf-nut.com.

But to get to your answer, the most common explanation that I have come across is that the flat cross section is there to rest the thumbs on top of in the putting stroke. Some feel that this steadies the putter and gives more control, thus ensuring a smoother stroke on the putt.

Now, by the rules of golf, this flat side is allowed, but not required. So, if you don’t like it, you can redo the grip and shaft, so long as the design conforms to all the applicable sections in The Rules of Golf.

That’s it until next time golfers.