the blockage being rotated by exerting on the edge of the board so as to be in support of 2 enb diagonal round of drilling tool, and for drilling in the center of the slice. only problem we must exert force so that the whole does not move and during this manbipe plastic tool deforms: the coup accuracy when drilling is less. this briefcase is full but the other green guide sold séparémùent bcp is more solid and precise. the stops of drilling depth is not great either (tightening the Forret with a set screw best are those sold to unit used throughout the Forret and not on a single point
