The PowerShark WB3000, a new rechargeable, submersible handheld tool from Waveblade, Inc., removes barnacles and other unwanted growth in seconds. According to the manufacturer, it delivers a new level of efficiency and safety for shallow dive maintenance work on hulls and marine structures, and works equally as well for land-based projects. The PowerShark capitalizes on a patented resonant wave technology. Oscillating at a 3,000 rpm frequency with additional harmonics, the tool's cleaning head actually breaks the chemical bond between materials.