Tin Can Hole Saw

I needed a large hole saw for one of my projects. I already had a smaller hole saw, therefore I did not want to buy another one....?

You see, a hole saw is not something I use very often. Last time I bought a hole saw for around 10 - 15 USD only to used it once or twice.

I did not want to spend another 15 USD for a tool that will not be used.

In this Instructable, I demonstrate a way to make a hole saw out of a tin can.

It can cut plastic, acrylic and drywall.

Tin cans come in different sizes, so we can make different size hole saws.

First I emptied the can

Then I cut off the inner rim

Then I drilled a hole in the center

I used a rotary tool to cut teeth

I sharpened one end of the bolt

Then I attached it to the can with nuts on both sides

The bottom of the tin can is very thin. I covered it with some hot glue to make it less flexible.

I also covered nuts so they would not come loose

That's it!

Our hole saw is ready!

It can cut plastic, acrylic and drywall.

Before drilling the hole, use a normal drill bit to drill the center hole, so you can insert the bolt.

I tried to cut wood, but it did not work very good. Maybe I had to sharpen the teeth better or the material is too soft for that kind of job.

It's perfect if you need to cut a few holes in materials mentioned above, but you don't want to spend money on a hole saw.