During compression, the ruler slipped and I could hardly get the size I wanted. To solve this problem, I designed a new ruler marking gauge.
More... Hand Tools
Why buy expensive reels in stores? We can do it ourselves!
More... Electrical
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.
More... Drilling