William Ng simple box joint jig
youtube Ng’s how to make box joints
Demo makes drawer with 5/8” Baltic Birch.
Uses 3/8 inch dado set.
First drawer on top is usually a 6 inch drawer. Drawer front is 6”, opening is 5”.
Blade height set by width of material. About 1/32 inch more than material width.
Spacer 0.004 less than dado kerf.
Make fingers 0.005 - 0.007 inch smaller than kerf.
Leeway version of Lynn box joint jig