This article was updated May 5, 2023. It was originally published Sept. 24, 2009. Shaft keys—sometimes called sunk keys—transmit torque between shafts and shaft-mounted components such as gears or ...

Dimensions of shaft keys, standardized many years ago, are commonly considered to be the main concern in applying these devices. However, designers tend to forget ... Register or Sign in below to ...

In this video, putter expert Martin Hopley explains the 7 key things you need to get right when it comes to choosing a new putter. It's the club you'll use the most during a round of golf and as a ...