If you're doing woodworking on a shoestring budget, you'll be happy to
know that the only tools you need to cut tight-fitting mortise and
tenon joints are a square, knife and marking gauge, a fine-toothed saw,
and couple of sharp chisels and mallet. You may also wish to use a
drill or brace and bit, to remove waste from the mortise ahead of
chopping it to final size, and of course, you'll also need to supply
some elbow grease and a healthy dose of patience.