The impact drill is made of special steel, and the cutter head is made of: K10 (YG6X) material. After the overall high temperature treatment, it can be easily drilled on wood, stone, concrete, and steel plate, avoiding the use of different sites and saving time for replacement. 

Diameter: 3mm-25mm, Length: 70mm-1000mm. 

Working length and overall process are in accordance with German standard (DIN 8039) production requirements. The surface is treated with shot blasting, which fully meets environmental protection requirements.