45 degree 1/4" and 1/2" drill jig

cults3d

I have a need for a 45 degree jig for a project coming up and didn't want to spend much to purchase one. Here is what I came up with. The bit sizes are 1/4" and 1/2" (though the tolerances may be a bit tight and you may need to drill out a small amount your first time using it. The distance from the drill hole to the edge of the board is adjustable using the stopper The stopper holes are 1/4" apart The 'keyhole' design of the stopper pins allow you to rotate the stopper to get approximately 1/8" precision when setting the distance. There is a 'sight' to ensure side-to-side alignment The sight extends through the jig to the surface. The stopper rod is a bit weak when using my printer and I kept breaking them. I've added a 'rod' file that should have improved strength if needed.