Nesting Caulk Tips How do you cut the tip of a caulking tube to the right size and angle? And how do you reseal the cartridge when the job's done? Perfect Bead Caulk Tips solve both problems. Packaged in groups of four, three of the plastic tips have a perfect 45-degree angle cut on the end and each produces a different bead size. To use the 1/2- inch tip, screw it onto the cartridge after cutting off the nozzle square (a cutout in the cardboard packaging acts as a guide). For a smaller bead, add the 1/4-inch tip, then the 1/8-inch tip to form a series of nested tips. The fourth tip serves as a cap to keep unused