To provide a presser tool formed so as to prevent a presser bar from being come off even by shaking in an earthquake or the like in the presser tool for pressing a petroleum can or the like stacked together in a plural quantity vertically and laterally.

A plurality of petroleum cans 10 (for instance, 5 cans) are arranged between columns 50, in order that a presser bar 40 pressing the cans stacked in several steps further upward is bridged over diagonally in each step, of the right/left columns, in a position a little higher in the left side column, a lock body 20, in a position a little lower in the right side column, a lock body 30 are mounted able to swivel. The lock body 20 comprises a lock part 22, bottom plate 24, and a mounting plate (shadowed by lock part 22), the lock body comprises a lock part 32, bottom plate 34, and a mounting plate (shadowed by lock part 32). The lock part 22, 32 has a cavity part 23, 33 respectively inserting a tip end of the presser bar, and the presser bar 40 has lock hooks 41, 42 respectively engaged with a top side 26, 36 of the lock part 22, 32.