The PowerHorn is an electric hammer that can adjust the drill hole diameter. Drawing inspiration from the strength and stability of the rhinoceros, its design embodies these qualities. Traditional electric hammers often have fixed hole sizes that require complete shutdowns and drill bit replacements for adjustments, compromising efficiency and user experience. The PowerHorn features a multi-layer drill bit structure. This innovative design allows for real-time diameter changes by adjusting the layers of the drill bit, enhancing efficiency and convenience.