| 摘要 |
The present invention relates to an anchor bolt-hitting punch, and more specifically one designed to allow an anchor bolt to be safely and firmly inserted and secured in a fastening hole made in the concrete ceiling surface of a building, by using a hitting device in which a separate hitting means is formed on a drill bit that creates the fastening hole in the ceiling surface while rotating at high speed and in which the drill bit is then assembled on an anchor drill that performs a rotating motion and a linear reciprocating motion, and which performs a hitting motion via the hitting means. |
