How to pocket-screw without a jig
For some joints, you can pocket-screw the parts together even if you don't own a pocket-hole jig. For example, when attaching legs to a tabletop, avoid screw holes on the faces of the legs by pocket-screwing from the back. Here's a way to do it. First, with a Forstner bit, drill 3⁄4 " holes 1⁄4 " deep in the bottom of the tabletop, where shown. Then, placing the tip of a 5⁄32 " bit in the corner of each hole, drill a shank hole at a 35° angle. To guide the bit, bandsaw a bevel on a piece of scrap, as shown. At assembly time, use the shank holes as guides to drill pilot holes into the legs. Then fasten the tabletop to the legs with ordinary flathead wood screws.
—from the WOOD® shop