Today is glue and screw the seat boards. I almost messed up with holes marked over the side legs and seat boards not rounded over. Got to check those parts before assembled. Predrilled the holes on the small drill press. Next sanded the brackets for the arm rests, OOOPs , found that 2 of 4, we are making 2 chairs were not square on the top so more sanding with stationary sander. Now do to another. I was marking the center of the front upright legs for the holes and remembered to grab the other pair for chair 2. so now those are pencil marked. It does help to make 2 at a time. Predrilled and screwed the brackets, then went back and unscrewed and glued and screwed. this is not a clampable position so the predrill helped with holes when i had glue and parts could move. Drill bits are my BRAD POINT bits stored in a wood block and marked with a sharpie. SHOP TIP while at a class at Woodworkers Source the leader showed using a 90% angle plate to transfer lines around a board. Now I found this very useful in this build and so easy to keep one or two around my tools. just big enough to go around the edge and down the side, easy to hold and not going to move, cost about 69 cents.