Review on 🔧 DD350X Drill Bit Sharpener by Drill Doctor - Multi-Purpose Tool, Pack of 1 by Khalil Hopp

. If you can read and understand instructions. Of course there is a learning curve. You must understand the terminology and relationships of machine parts and how they are used. But it's not that hard if you follow the instructions that come with it. After a few trial runs to make sure I was setting the bit correctly, everything went smoothly. In hindsight, it's pretty reliable. Took about 15 minutes to sharpen 4 bits that were very dull. I mean so boring they just twirl around in the pine forest. Bits that just need touching up should only take a few minutes to set up and sand down. The trick is knowing how long to set the bit for more sharpening and less adjustment. If you set the depth strictly as instructed, you will make multiple adjustments in one sharpening process, which takes a long time. I made my hair a little longer and it worked great. Sharp as a razor! The good news is that you can easily fix even small errors with the included troubleshooting guide. However, the only real way to make a mistake is to not touch the leading edge of the grooves with your fingers. Do this and set the depth of sharpening properly and the sharpening process will be a breeze. This machine also shows how off-center some of my bits were milled. I have regular 118 degree wood and soft metal drill bits so this inexpensive machine is perfect for my needs.