Plastic hammer, kickback-free, for straightening workpieces on machine tables, for gentle blows during assembly work, inserts made of particularly tough, wear-resistant plastic, for an exceptionally long service life, handle made of FSC® certified hickory wood, easy to grip, robust and durable, with special wedge and Heavy dowel pin securely fastened in the handle, nevertheless easily exchangeable, recoil damping by weights in the hammer head, for deep, precise blows without rebound, wear protective goggles when working with striking tools