Use the Bessey right angle clamp for clamping square corners at a precise 90 degrees. The right angle clamp is ideal for holding parts to be screwed or glued together. The clamp's maximum opening is 7/8" on one side and 2-1/2" on the other side for members of different thicknesses and 1-3/4" for members of equal thicknesses. Maximum thickness at the joint is 1-1/8". $19.99 + tax. I ordered 4 and got free shipping.
If the code doesn't apply use coupon code V91040