Lathe Chuck Keys

Whether you're looking to easily adjust the jaws on your lathe or to replace existing lathe keys, Cromwell stock a range, featuring name brands like Indexa in a range of sizes to suit your machine.

What is a lathe chuck key?

Whether you're running a self-centring, independent or an independent lathe chuck, a lathe chuck key is a useful device for ensuring the jaws are secured firmly as well as for loosening the chuck to remove the workpiece.
They help ensure that during working the workpiece is held securely by the chucks jaws during rotation which helps with elements like safety as well as ensuring the workpiece isn't susceptible to movement causing inaccuracies.

How do lathe chuck keys work?

Lathe keys work in much the same way as a standard chuck. Firstly, you will need to select the right sized key to the lathe being used. Ensure that the post size angle and tooth count match your machine. To use the lathe chuck key simply insert the tip into the hole and turn to tighten or loosen the jaws. Following the "righty tighty, lefty loosey" method helps with this.

Considerations when choosing a lathe chuck key

The main consideration when choosing a lathe chuck key that's compatible with your machine is the sizing of the slot. There are many types of lathe chucks in varying sizes so the key needs to be able to fit the slot in order to operate correctly.