Related question: Accurately guiding Forstner bits... The typical V shaped center point doesn't do much. A predrilled pilot hole helps somewhat.
Anyone seen (or modified) a Forstner type bit with a long guide bit or pin?
With hole saws the bit is usually removeable, and a smooth guide shaft can be used in predrilled guide holes for better accuracy. Wish I could do that with Forstner bits.
I need to drill about 100 2" to 2 1/4" holes, 2" deep, in the post&beam barn I'm building. The 'wandering' is a definite problem...