CB Slot Cap - forstner bit pencil outline for visual lining up

With no predrilled hole, the forstner bit starts nicely and doesn't wander... if you happen to line it up good enough at the start. As steady a hand as I have (at times), I could not get it visually freehanded without wandering, partly because of the predrilled hole not allowing the bit's own guide to function, and partly because it was difficult to *see* when it was lined up with the predrilled hole.