To prevent positional slippage of a printed circuit board placed on a movable table and the movable table at the time of moving the movable table of a standard hole drilling machine.

The printed circuit board (not illustrated) which is a work is placed on the movable table 12 of the standard hole drilling machine 1. The work is sucked and fixed by air of negative pressure applied on pores (not illustrated) opened in a large number on the movable table 12. An axis of rotation is provided at right angles with the moving direction of the movable table on a central part of a printed circuit board presser 71, a presser roller 72 to rotate in accordance with movement of the movable of table 12 is set, and this presser roller 72 is singly free to move vertically. When the work is inserted at a working position, the printed circuit board presser 71 and the presser roller 72 are lowered at a working starting position, the printed circuit board presser 71 pressurizes the work when the movable table stops, pressurizes the work on the movable table 12 until working is finished, and it prevents positional slippage.