Can I Use a Different Power Source Instead of a Drill for my Flexible Shaft?

One of the most common questions we hear is: “Can I use another machine instead of a drill to power my flexible shaft?”

The short answer is: yes.
The long answer? It’s not always a good idea.

Using Other Machines with a Flexible Shaft

Many customers experiment with alternatives to a drill, and one of the most popular is a car polisher. With the help of a shaft-to-shaft connector—typically 14mm on one end and 12mm on the other—they connect the flexible shaft directly to the polisher. The advantage? You get a lot more torque, which can be quite appealing when you’re dealing with tougher jobs.

The Risk Factor

But here’s the catch: car polishers (and similar machines) don’t come with a torque limiter. That means if the shaft meets resistance, there’s nothing to stop the machine from continuing to twist—potentially leading to a kinked or damaged shaft.

Over time, some users say they develop a feel for how much torque their shaft can handle. While that experience helps, it doesn’t eliminate the risk.

The Safer Way to Power Your Shaft

If you’re considering using an alternative to a drill, there’s one essential rule:
Make sure your power source has a built-in mechanical or electronic clutch.

This feature helps protect both the machine and the operator if the shaft gets stuck or meets unexpected resistance. It’s not just about performance—it’s also about safety.

Lastly, we have also created a video on this topic, which you can watch here.

Conclusion

Yes, it’s possible to power your flexible shaft with something other than a drill. Just be cautious, and make sure the machine you’re using has proper safety features. When in doubt, stick with tools designed for the job.