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Spiral Router BitWhen you need to cut dadoes or rabbets into a board using a router bit, you need a bit that will cut a straight-sided groove with a flat bottom. If you look through the router bits available at your fine woodworking supplier, you'll find both straight and spiral-cutting router bits that will accomplish the same task. Additionally, some spiral-cutting bits cut with an up-draft while others cut with a downward motion.

What's the difference between all of these bits, and more importantly, which is the best choice for your cutting needs?

Learn the what separates each bit from one another as well as why each one may be the right choice for you in this article on Straight and Spiral Bits.

(c) 2012 Chris Baylor, licensed to About.com Inc.

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