I needed some way to clamp reinforcing blocks in the corners of a drawer I was repairing, while the epoxy hardened. I didn't want to spend a lot of time cutting angled corners in blocks; so I came up with a quicker solution...
I drilled (4) 3/4" holes with the center points 5/8" from the edge in a scrap block of 2 x 4. Then I ran the block through the table saw with the fence set 1/2" from the blade. This cut makes the hole center point 1/8" from the new edge. Then cut them to the desired height and length. It took about 10 - 15 minutes to make these blocks.
As you can see with the hole center position 1/8" from the edge, the corner of drawer did not touch the inside of the hole, allowing for steady, secure surface for the clamp to apply pressure. I hope this idea can be of use to some of you builders out there.