Game of 7 -piece forests The 7 -piece SDS concrete forest game with 4 cutting edges and carbide plate is suitable for any SDS Plus perforator hammer. 5, 6, 6, 8, 8, 10 and 12mm. The drill game is placed in the storage box, written in storage and transport. High quality materials The body of the forest is made of 40cr alloy construction steel and the tip is made of hard yg8c alloy. Tool design design resistant to wear, brazing process to guarantee that the forest is solid, the alloy is not easy to die For a fluid and effective drilling on concrete, brick, block, stone, masonry and granite. The double flute allows you to quickly clean the debris, reduce the forest tension and increase the life of the forest. Field of application applies to concrete, to the brick wall operation . Suitable for all hammers with tightening system with four SDS-Plus holes. Customer satisfaction Customer satisfaction is very important for us, so we want to make your purchase decision as simple as possible. We take the risk and promise: if you are not satisfied with the product purchased or if the drill breaks, please contact us and you will receive a free replacement product or a refund - within one year from the date of purchase.