ASSEMBLED BOARD AND ASSEMBLED BOARD DIVIDING METHOD

摘要

An assembled board (50) is provided with a plurality of slits (1, 2) which intermittently extend along a boundary line (L) between a first board (main body board) (10) and a second board (margin board) (20). Remaining parts (8) left between the edge parts of the adjacent first and second slits (1, 2) are cut by a cutting tool (bit) (30), and the assembled board is divided into the first board (main body board) (10) and the second board (margin board) (20). At least on one edge part of two leading edge parts facing each other by sandwiching the remaining part (8) of the first and the second slits (1, 2), a penetrating insertion hole (1a) is provided to insert the cutting tool having a diameter larger than the width of the first and the second slits (1, 2).