To conduct easy removal after concrete is hardened by taking clearances at the cut surfaces of a long insertion rod and a short insertion rod, whose front end parts are cut at a diagonal acute angle, by an amount equivalent to the thickness of inward anchor pot hard paper, welding its root part at the particular percentage of the short insertion rod, and welding the root part to a handle.

The front end part 4 of a long insertion rod 2 and the front end part 5 of a short insertion rod 3 are diagonally at a acute angle. The cut surfaces of the front end parts 4, 5 are directed inwards, and a root part 7 is welded up to 1/3 of the length of the short insertion rod 3 leaning a clearance of an amount equivalent to the thickness of anchor pot hard paper. The root part 7 is also welded to the central part 6 of the handle 1. To use it, the long insertion rod 2 is inserted in the clearance between a concrete part and anchor pot hard paper so that the anchor pot hard paper may be accommodated in the long insertion rod 2 and the short insertion rod 3. By truing the handle 1 horizontally, it is possible to take out the hard paper completely.