Finished cutting and drilling holes for the 2.25 inch instruments (compass, turn indicator, ASI, ALT, VSI, and G-meter) in instrument panel. Each hole had to be customized for each instrument. Used a printed template to mark 2.25 inch holes and screw holes. Had to open the ALT 2.25 inch hole up to allow the ALT to fit properly. The other screw holes had to be opened up slightly to accommadate slight differnces in instrument mounting hole positions.