Countersink Bits

[Jerome Ranch]

Input on the best bits for countersinking will be appreciated. The ones I have are tearing up the surface grain real bad (and they're brand new) Jerry

[Robatoy]

I bought a set of spiral, tapered bits with countersinks from Lee Valley some 20 years ago. Flawless, never sharpened still in use today. (I did break the tip off the #12 but it still works...sorta/kinda.)

The usual disclaimer applies: I'm Kanuckistani, like Robin Lee, other than that we never had lunch.

[Tyke]

I have been very happy with a countersink bit I purchased from Lee Valley Tool.

like the continuous style. It has given me less tearout.

Dave Paine.

[Jerome Ranch]

Dave How would you control depth of cut with that style?

[Juergen Hannappel]

With care or preferably the drill presses depth stop.

[Tyke]

Yes this is what I have been doing so far. My present uses have not required precision. If I need to truly control then I would use a drill press.

I normally use the countersink bit in a brace and bit. I drill a little, test the hole against the screw head until I get the whole head to fit in the hole.

Dave Pa>

[Ba r r y]

Masking tape on the bit and care is excellent for depth control while hand drilling (with or without electricity).

I actually own "real" depth stops and use tape more often than the stops.

Barry

[Michael Burton]

Tyke wrote in news: [e-mail]:

The single flute countersinks are excellent. The ones I own are made by the Weldon Tool Company, I think bought mine at The Cutting Edge in Houston I think. They work great in Aluminum as well.

[Enoch Root]

You might try checking the edge on the ones you have, and sharpening if necessary.

er