3-Piece Chisel: The three-piece short chisel set allows standard work in concrete and block for renovation and restoration. The sharp chisel tip allows precise setting work, while the flat beveled edge allows for high material removal rates.HIGH QUALITY HARDENED STEEL: Sharp chisel tip for fine tuning work. Wide blade chisel for high stock removal. For concrete and block with spatula allows to carry out all types of standard demolition work.Precision installation: Using the system, the cutter head and chisel can be quickly changed without tools, saving you a lot of time and effort. Can they also be used directly with trigger hammers?Rnovation et restoration : avec a extreme de travail incurve de manire ergonomique, il est facile d'enlever les revtements de sol et de mur pour les travaux de dmolition et de rectification du bton et les travaux de maonnerie.