How do carpenter bees make holes in the wood?

Buzz pollination is the way that carpenter bees pollinate flowers. The insects in question (Xylocopa spp) manage to dislodge pollen grains by the power of their thoracic muscles. Buzz pollination by carpenter bees results in fruiting blackberries, canola, corn, cotton, eggplants, night-flowering cacti, passion-fruits, peppers, pole beans, and tomatoes.