A metal body filled with steel balls reduces the effect of reflection from the material. It has a profiled wooden shaft. The connection is secured with the additional transverse mandrel. It is an ideal tool for repair work in the automotive sector, body work, straightening work and sheet metal processing. The plastic inserts are made of nylon and, thanks to their hard design, offer a long service life and achieve good work results. The plastic contact surfaces prevent damage to the workpiece and achieve very good results when removing dents from sheet metal. Nylon is a relatively strong and brittle plastic, which makes the hammer suitable for large-area work that requires less effort. A special assembly hammer for work that requires a strong impact and simultaneous material protection, e.g.