The tool required is chisel edged NOT knife edged. You could take a hacksaw blade and break it in half. Grind the teeth off and bevel the end at anything between 30 and 45 degrees. This would produce the ideal tool. If you prefer to buy the tool an exacto knife will work but you will use the back of the blade NOT the knife edge. Now onto the project. We need to mount 2 BF2040s on a PC board.the first step is to clamp a ruler on the board as a cutting guide.
Maybe I can mount the BF2040s tomorrow.