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In this video I build a 20cm drill powered disk sander. It is a powerful disk sander. There is a miter sanding attachment and there is a circle sanding attachment. You can do beautiful woodwork with this great sanding machine.



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You can use it both to drill 90 degree holes and to drill holes in the depth you want. It also works for joining two woods together, you can see in the video.

In this video, I make an adjustable drill bit. I start by using the metal I cut from the M12 bolt. Then I am cutting a Spade Drill Bit. Then I combine the two.