The TE-SPX is a robust chisel for high-performance demolition hammers. Its fundamentally new design offers a solution for several problems complicating demolition work. On the one hand, the strong flanks help to prevent the chisel from getting stuck in the concrete. On the other hand, the wave design reduces by 35 per cent the danger of the chisel getting broken, while increasing performance by 15 per cent. In addition, the flower-shaped cross section prevents dust from becoming airborne, significantly enhancing the working environment.