DCT Cartomizer Punch
This is a tool that will let you punch holes in a cartomizer so that they will work with the Dual Coil Tank Cartomizers. The tool is a simple device with a ring that your cartomizer slides into, and a wing screw that has the end honed to a point. Twist the screw until the point has penetrated the cartomizer side wall. The punch comes with a lobster clasp for convenience.