Tool for punching small steel pipe

The utility model relates to a tool for punching small steel pipes. The tool comprises two body units, locking pieces and a power unit, wherein the locking pieces and the power unit are connected to the body units. The body unit comprises a clamping part and a mounting part which are fixedly connected with each other; the locking piece is configured to be connected to the other body unit in a screwed mode so that a channel allowing a steel pipe to penetrate through can be formed between the two body units, the clamping part clamps the steel pipe, and a gap exists between the mounting part and the steel pipe. The power unit is arranged in the mounting part, and the axial direction of a telescopic driving shaft of the power unit is the same as that of the channel. The technical problem that a large piling tool is not suitable for small steel pipe operation or the steel pipe operation only needs to be manually operated on a small ship can be solved. 本申请涉及一种打设小型钢管的工具，其包括两个本体单元、连接于所述本体单元上的锁紧件和动力单元；所述本体单元包括互相固定连接的夹