Router bits are one of those things where you can spend forever researching or just learn the basics and start making stuff. Here’s what actually matters.
Straight Bits
The workhorse. Flat bottom grooves, dadoes, rabbets, mortises. Get a few sizes – 1/4″, 1/2″, 3/4″ cover most needs.
Two-flute is standard. Single flute removes material faster but rougher. Three flute is smoother but slower.
Flush Trim
Has a bearing the same diameter as the cutter. Follows a template or reference surface and cuts everything flush to it. Essential for template work.
Top-bearing references the top, bottom-bearing references the bottom. Get both eventually.
Profile Bits
Roundover is probably the most used. Softens edges. Get 1/4″ and 1/2″ sizes to start.
Chamfer cuts angled edges. 45 degrees is standard. Looks nice, prevents chip-out.
Ogee makes that fancy S-curve molding shape. Dresses things up when you need it.
Half Inch vs Quarter Inch Shank
Half inch is stronger, more stable, less vibration. Use it whenever your router accepts it.
Quarter inch for smaller routers and detail work. Fine for light stuff but can flex under heavy cuts.
Carbide vs Steel
Carbide. Always. Stays sharp way longer, especially in plywood and MDF. Steel dulls fast. The price difference is worth it.
Starting Your Collection
Don’t buy the big set. Get a 1/2″ straight, a flush trim, a 1/4″ roundover, and a chamfer. Add more as projects need them. Quality over quantity – a few good bits beats a drawer of junk.
