Whiteside #6 Countersink Bit

The four flutes cut through oak like butter, and the 82-degree chamfer matches my screws perfectly without any chatter. I’ve used cheaper bits that left ragged edges, but this one’s been dead consistent on a dozen pilot holes so far.

Finally got clean, consistent countersinks for my #6 screws without any tear-out. The 4-flute design really does cut smoothly and the adjustable depth is a nice touch for precise work.

The 82-degree angle cut a perfect seat for every #6 screw I've driven this week, and the four flutes made quick work of even the harder pine. It's adjustable too, so I could set the depth exactly right without any wobble or tear-out.