A problem that many run across when using a hole saw is the burning that occurs around the hole or even on the hole that is cut out in itself. Many woodworkers don’t use the hole in itself, but even if you don’t there is the problem with burning around the edge of the hole that was cut out. So how is the burning prevented, or at least kept to a minimum?
You have to give the sawdust a way to escape from the hole saw’s teeth. If you don’t it will build up friction between the two rubbing together, and so it will cause burning around the hole edge and on the hole itself. There are a few ways to divert the sawdust.
If you want to keep the hole being cut out, then pass up this step:
If you are using the hole for say, wheels to a wooden toy that you are making, and you need the hole, try this.
Odds are you are using a scrap piece of wood to make the holes. This being the case, then try to cut the holes out on the edge of the scrap piece. When you do this, the sawdust will have a place to escape – the edge – and will bring the burning to a minimum.
If you don’t want to keep the hole, then you can go with this step:
Make a smaller hole in the bigger hole with a spade bit first, before cutting out the larger hole. Before you cut the small hole though, you can scribe the large hole first, that way you will know where to put the smaller hole. It is best to put the smaller hole at the edge of the bigger hole because that is where the sawdust will build up.
What this will do is make a passageway for the sawdust to escape, thus minimizing or even stopping any burning around the hole’s edge.
DO YOU HAVE a woodworking project or tip that you would like to submit to WooDesigner and get it added to our site? Then go to the contact tab below OR at the top of this page and let me know. Just make sure you are able to give us step by step instructions on it, as well as images as you see here, and we will put it on this site just like you have read on this page! As long as it is clear and concise like you just saw, it will go up. Your name will be credited to the project, as where you live. (Please include that.) Also include the type of lumber you use for the design. We look forward to hearing from you! (Take note that the tip and images and instructions have to become ours. I do hate that so much but in today’s society so many will sue, and yes, you can sue for a lot of money over images.) The tips will need to include YOUR IMAGES that you take. They can’t be images from somewhere online. Remember, we have to go through these images and if they aren’t your own, we will not be able to use them. This is illegal and it won’t be tolerated and you will be banned from this community by being blocked. We can get sued for this, and just one bad apple can ruin our community.
Ted Leger –
Comments or questions are welcome.