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
I am making a jig to glue sandpaper. A great tool for making perfect sanding belts easily and quickly.
Start by downloading a PDF template from the link below. Print PDF dimensions table (this PDF). Then perform the operations on the video. I hope you enjoy it. Please subs