To obtain a low cost auxiliary table without taking a space.

The basic end of the auxiliary table 11 of a right-angled double surface planer 1 is fixed with bolts to the end part of a table 3, under the state that the top surface of a transfer surface 12 is flush with that of the table 3. In this case, the width wise size of the transfer surface 12 normal to its transferring direction is made remarkably narrower than that of the table 3. Further, the auxiliary table is connected to the table 3 so that the auxiliary table is even to the guide bar 10 side edge of the table 3.