Divider Method

(1) Place one leg of the divider in light center punch mark.

(2) Adjust the divider that is why the other leg is on a line and set exactly to the edge of the work-piece.

(3) Revolve the divider by one-half turn (to another end of the same line) and make sure if the leg of the divider is in the same relation to the edge of the work as in step 2.

(4) Whether not so, lightly move the center punch mark to correct the error.

(5) Repeat the step no. 4 on other scribed line until the punch mark is exactly on center.

(6) Deepen the center punch mark in preparation for drilling the center hole.

(7) Repeat step no. 1 to 6 on other end of the work-piece.