Abstract: A reciprocating tool includes a reciprocation conversion mechanism disposed in a casing neck, a saw blade connected to the reciprocation conversion mechanism, a shoe, and a shoe adjustment mechanism. The shoe adjustment mechanism has a cover plate connected to the reciprocation conversion mechanism and a slide pin. The shoe has a support and a guide plate pivotably connected to the support. The guide plate is disposed between the cover plate and the reciprocation conversion mechanism. The guide plate has a slide groove parallel to a direction of reciprocation. The slide pin passes through the slide groove. In a locked position of the shoe adjustment mechanism the slide pin is engaged in the slide groove and the guide plate is locked by the slide pin. In an unlocked position the slide pin is disengaged from the slide groove and the guide plate is slidable in the direction of reciprocation.