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Countersink Bits

Choose either a #6, #8 or #10 countersink bit, made in the US from high-speed steel.

Pick out the correct size countersink bit for your next project and start drilling with precision today.Each countersink bit we offer here is made in the USA from high-speed steel. This high-speed steel makes these countersink bits tougher and longer-lasting for use on harder, abrasive materials. And they can even withstand much higher temperatures too.You can't go wrong with a countersink bit from Bits & Bits. These are designed to be extremely precise, allowing you to sit screw heads perfectly flush right where you want them.