The aperture of the traditional electric hammer is generally fixed, and each time the aperture is adjusted, it needs to be completely closed, and then the drill bit is replaced, which greatly reduces the work efficiency and the use experience. This electric hammer uses a multi-layer drill structure, which can change the aperture in real time through the number of drill layers, which is more efficient and convenient.
Based on a conceptual scheme optimized a few years ago, materials and torque are estimated to be difficult to achieve at this stage, and hope to have opportunities in the future.