Here I am at the drill-press and we are making 7 1/2"
holes to accept my new router cutters.
This block of pine will be glued inside the box we have formed.
The holes are drilled right through the timber, and the existing
base will stop the bits. So 18mm of "pure holding power"
I have marked out a center-line and also 7 points where my
bits will go.
TIP: Make sure your bits will not clash, make your you space
out the holes to avoid this.