This is my first real woodworking project, so bear with me. I decided to create a picture frame (18x24) for a print I bought for my wife for Christmas. It's made out of 2" wide mitered pieces of oak. I used a dado blade to cut the lip for the contents of the frame. However, in my stupidity, I didn't test fit the glass after it was clamped (I did before it was clamped, but yeah, stupid me).
So now it's glued and I need to take about 1/8" off of the inside of the frame. It seems to be due to the fact that it's not perfectly square since it's only on the one side of the frame. I started sanding with 100-grit sandpaper as that's the roughest I had around. I'm sure you can guess that I'm not making much progress with it.
Should I invest in a set of chisels and work it down that way? I thought of using a rougher grit paper, but not sure if it's going to work for the amount of material that needs to come off. Any other suggestions on what to do? Thanks!