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.
Making Video :
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Did you see this ? Countersink Drill Bit making
Jigsaw Cutting Station. Easy build, made of scrap wood.. Simple and useful homemade tool, straight wood and alimunium or inox cut, 45º - 67,5º - 90º. Easy operation and f
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The table of this stand I made is movable. It can be adjusted to any angle you want. Suitable for all kinds of notebooks. I tried it for 17.3" and 13" notebooks and found
More... Wood Works
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.