Advanced Drill Bit Sharpener

This is my second-generation drill bit sharpener. I added many features and adjusting abilities to my original design. I hope you enjoy this Instructable.

Everything started when I built my original drill bit sharpener and uploaded the video on YouTube, the video was successful, and people started commenting and suggesting me to improve my design. So I decided to make a new version and use those tips. You can also check the Instructable for my Original Drill Bit Sharpener Here.

I started with the original version as a base. Please make sure you check my original drill bit sharpener first. I cut an M10 bolt in half, then split the bottom of both pieces with an angle grinder and cut one side of each split part on each piece. Then drilled a hole through them and used an M5 bolt with a toothed nut on one end and a lock washer on the other to prevent it from loosening due to high vibration. As you see, now it can easily swing with an adjustable angle to sharpen the tip of your bits accordingly. Due to the swivel base, each side will have a slight curvature, which provides relief. This is one of the significant improvements of this jig over the original one.

I also design an attachable base for mounting my device to an angle grinder with a few pieces of steel angle. I drilled several extra holes in the base, so it would be flexible enough if I wanted to use different grinding discs or grinders.

Here is how it works, regular two flute bits have two cutting edges (you can sharpen only two edges with this sharpening jig). There is a two-step process. First, you insert your bit into the drop-shaped hole, and after adjusting the angle with the grinding surface (you can adjust to your desired angle depending on your bits and the material you are drilling, but most common HSS bits are about 118 degrees), then put the paper clip on and tighten the secure bolt, after you have done grinding one side, loosen the secure bolt, rotate the bit exactly 180 degrees and do the other side. I used 100-grit sandpaper and a diamond wheel; both worked fine for me. Also, being able to adjust the angle of the bit tip is another improvement over the former design.

If you have any questions or suggestions for me, please leave a comment, and I will reply as soon as I can. I hope you enjoyed this Instructable. You can also check the video tutorial of this project by clicking on the video, which is located at the top of this page. Please feel free to ask any questions in the comment section below and

also, you can check my YouTube channel for more projects like this.