Two-step cutting action for precise, clean holes in wood drilling applications. Dura-Tip for extreme durability in nail-embedded wood. Dual cutting edge design for effortless, smooth hole drilling in nail-embedded wood. Deep flutes for fast chip removal. 7/16 in. hex quick change shank increases stability and durability in cordless and corded impact wrenches and drill drivers.
This product may work well for 4x4 but does not provide good drilling through utility poles. Disappointing because Diablo usually makes really good products.
Pros
Two stage cutting action for accurate and clean holes when drilling wood
This non-precise drill bit is easy to install but great for not damaging the threads that form the bulkheads on the lake. At this price it's perfect for mounting my 3/4" galvanized bars. Don't forget to put a double washer behind the nuts.
Pros
Dura-Tip for exceptional strength in wood with nails
OK. If you plug this into a drill press and turn it on, it will drill a hole in the wood. For that he gets several stars. But. The hole will not be exact. I bought a 13/16" and it was about 20-30k more. Enough to keep it from going through the drill press. The drill bit is larger in diameter than the body and as a result the drill bit wanders and doesn't make a straight And finally if you look at the grooves they are not deep at all and don't remove chips well.Just drill holes for pipe or wireβ¦
Pros
Dual cutting edge design for easy and smooth drilling of holes in wood with nails