Important: I would like to keep the PDF documents and plans I produce free of charge. Please support me with your likes and comments.
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 :
Go to this video's Youtube page and make a comment.
Did you see this ? Countersink Drill Bit making
In this DIY video I am making Taper Jig - Jointer Jig for my tablesaw. I used some plywood. It is very useful jig. It is very easy to cut angled and straight with this...

I am making a jig to glue sandpaper. A great tool for making perfect sanding belts easily and quickly.