I purchased the VOLT® RGBW G4 Infiniti™ 60 Integrated LED Brass Spotlight. I also purchased the VOLT® 3" 38 Degree RGBW Single Source Optic because I needed a tighter beam on my palm trees. What tool do I use to remove the three screws that is holding the current 60-degree lens in place so I can replace it with the 3" 38-degree lens? I have tried different hex wrenches, but it doesn't work. I have tried a small phillips screwdriver, but the screws are on so tight that I can't get a good grip on the small screw handle to even turn it. There should be a special screwdriver with a very wide flat handle to turn the screw. - Ron -