Types of Wood Router Bits — Every Bit Explained (With Uses)

A router is only as good as the bits you run through it. Understanding which bit does what — and when to use each — is the difference between clean, professional cuts and burned wood and tear-out.

This guide covers every major router bit type, organized by what they do.

1/4" vs. 1/2" Shank — Which to Choose?

Always buy 1/2" shank bits when your router supports them. Here's why:

• 1/2" shank bits have 4x the cross-sectional area — they flex less, vibrate less, and produce smoother cuts
• 1/4" shank bits are for compact routers and light work only
• On a full-size 2+ HP router, always use 1/2" shank for best results

Straight Bits

The workhorse of the router bit world. Straight bits cut flat-bottomed grooves, dadoes, rabbets, and mortises. They come in widths from 1/8" to 1-1/2".

• Use for: Dadoes for shelves, grooves for drawer bottoms, mortises, inlays
• Most useful sizes: 1/4", 1/2", 3/4"

Roundover Bits

Roundover bits are the most popular router bit for furniture making. They create a smooth curved profile on the edge of a board — transforming sharp corners into refined, comfortable edges.

• Use for: Table edges, cabinet doors, shelving, any furniture edge you'll touch regularly
• Most useful radius: 1/4" and 3/8"

Flush Trim Bits

Flush trim bits have a bearing mounted at the tip or shank that rides along a template, trimming the workpiece perfectly flush. Essential for any template routing work.

• Use for: Template routing, trimming laminate, pattern work, duplicating parts

Chamfer Bits

Creates a flat angled cut (usually 45°) on the edge of a board. Looks more architectural than a roundover — common on contemporary furniture and cabinet work.

Cove Bits

The opposite of a roundover — cuts a concave (scooped) profile. Used decoratively on furniture, molding, and cabinet faces.

Rabbeting Bits

Cuts a stepped recess (rabbet) along the edge of a board. Used for cabinet backs, drawer bottoms, and joining panels. Comes with interchangeable bearings to change the rabbet depth.

Dovetail Bits

Cuts the angled dovetail profile used in drawer joinery and sliding dovetail joints. Requires a router table for best results.

Best Starter Router Bit Set

For most beginners, a 15–20 piece carbide bit set covers everything you need. Look for a set that includes straight, roundover, flush trim, chamfer, cove, rabbeting, and a dovetail bit. Always choose carbide-tipped over HSS (high-speed steel) — carbide stays sharp dramatically longer.