On Friday, April 14, 2017 at 6:55:37 PM UTC-7, True North wrote:
Y'all sure are a weak wristed bunch.
I only use half inch drills but drill smaller holes and then enlarge, especially when using spade bits.
When drilling holes through framing lumber I use my long auger type bits...like the electricians do.

Why on earth would you predrill a hole for a spade bit? Defeats the purpose of using a spade bit. Thats just plain stupid.