Straight Router Bits

An upcut spiral pulls chips up and out of the cut, keeping the flutes clear and reducing heat—ideal for deep grooves in solid wood. A downcut spiral pushes chips downward, producing a cleaner top surface with less tearout, which is preferable when routing veneered plywood or melamine.

Yes. Straight router bits with a plunge point (also called center-cutting bits) are specifically designed for plunge entry, allowing you to start a cut in the field of a workpiece. Standard straight bits without a plunge point should only be entered from the edge or a pre-drilled hole.

A 1/2-inch shank provides significantly more rigidity and reduces vibration, which translates to a smoother cut and longer bit life. Choose 1/2-inch shanks whenever your router's collet supports it. Reserve 1/4-inch shanks for smaller trim routers or when cutting fine details.

Depth of cut depends on bit diameter, material hardness, and router horsepower. As a general rule, limit each pass to no more than the bit's radius in depth, and make multiple shallow passes to reach full depth. This protects the bit and reduces workpiece tearout.

Yes. Bits with a 1/2-inch shank fit any router with a 1/2-inch collet, and 1/4-inch shank bits fit any 1/4-inch collet. Shank diameter is standardized, so Infinity Tools bits work with Porter-Cable, Bosch, Festool, DeWalt, Triton, and other major brands.

Score the layout lines with a sharp marking knife before routing to sever the face veneer fibers. Use a downcut or compression spiral bit for the cleanest results, and clamp a sacrificial fence or guide board against the workpiece to prevent blowout at the exit edge. You can find more technique tips in our woodworking blog.

Straight and spiral upcut bits are among the most common CNC router cutters. For CNC use, look for bits rated for high-RPM operation with appropriate chip-load specifications for your material. Browse our CNC router bits collection for options optimized for machine use.

Remove pitch and resin buildup regularly using a dedicated bit cleaner and a soft brass brush. Inspect carbide edges for nicks after each use, and store bits in a protective case or bit index to prevent edge contact. Never use abrasive pads that can dull carbide.

Yes. Infinity Tools stands behind the quality of its products. Visit the quality guarantee page for full details on coverage and how to make a claim.

A router edge guide or dado jig keeps cuts parallel and accurately positioned, while featherboards hold workpieces firmly against the fence. For through-cuts and template work, a top-bearing straight bit provides a reliable reference surface. Explore our router jigs & guides for compatible accessories.