Hardened and phosphated impact head. The impact head opening is conical and the aluminum tube of the shaft is attached to it with a conical wedge. which ensures that the impact head remains firmly on the end of the shaft. The shaft part is made of aluminum on the inside. which is covered with fiberglass and rubber. An elastic sleeve at the connection point of the shaft and impact head to protect against missed blows. The rubber handle covering the fiberglass absorbs impact shock.