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 first-class fiberglass material, resistant to notches and breakage, securely anchored in the handle tube with two-component adhesive, Maximum safety when working, recoil damping through weights in the hammer head, for powerful, precise blows without rebound, wear protective goggles when working with striking tools