Aug 15, 2011 by michiman1 in Home and Garden
Rated a Very Helpful Review
Pros: Tight fit to square head screws. No waste, saved time, better depth control.
Cons: None, although even these do eventually round and need replacement.
Summary: While working on a recent deck project, I decided to take a chance with square head deck screws and additionally, these Irwin Square Recess Insert Bits in the hope that they would give me added torque and control while screwing in ... read more