Router bits decide what a router can actually build. A five-piece carbide-tipped general purpose set aims to cover the jobs most woodworkers hit first: trimming, edge rounding, mortising, rabbeting, and spiral plunge cuts. Street pricing for these sets usually lands between $60 and $90 depending on the seller, which works out to roughly $12 to $18 per bit before the storage case is counted. Before you buy, it pays to understand router bit shank sizes, because a set can mix 1/4 inch and 1/2 inch shanks while your router may only accept one of them.
Sets exist because buying five bits separately costs more and takes more trips. Retailers price a five-piece set to move, and the per-bit math only improves when the case is included. The catch is that a set is only a bargain if the profiles match the work you do, so list the cuts you actually make before you open your wallet.
What a Five-Piece Router Bit Set Covers
The five profiles in a general purpose set show up in everyday cabinet, furniture, and trim work. Exact sizes vary by manufacturer, but the roles stay consistent.
| Bit profile | Typical size | Main job |
|---|---|---|
| Up-spiral | 1/4 inch | Plunge cuts and chip clearing |
| Flush trim | 1/2 inch | Trimming laminate and template work |
| Mortising | 3/4 inch | Hinge and lock recesses |
| Rabbeting | 1-1/4 inch | Shelf dadoes and stepped joints |
| Rounding over | 1-1/2 inch | Softening edges and corners |
The sizes above follow a common pattern in this class. A 1/4 inch up-spiral handles thin stock and light joinery, while the 1-1/2 inch rounding over bit is the workhorse for table edges and rail profiles. Between them, the flush trim, mortising, and rabbeting bits cover the joinery and trimming tasks that make up most router sessions.
How Each Profile Earns Its Place
- Up-spiral bits pull chips up and out of the cut, which makes them the right choice for plunge cuts and dados in thicker stock.
- Flush trim bits carry a bearing that follows a template or an existing edge, so they trim laminate and veneer flush without a fence.
- Mortising bits plunge straight into the wood and leave a flat bottom, ideal for hinges and lock sets.
- Rabbeting bits cut a stepped shoulder in one pass, useful for shelves, picture frames, and panel grooves.
- Rounding over bits shape a smooth quarter-round edge, common on tabletops, rails, and door edges.
Four of the five bits in a typical set carry 1/4 inch shanks while the largest cutter uses a 1/2 inch shank. That mix is deliberate: small profiles run fine in trim routers, while big cutters benefit from the stiffness of a thicker shank.
Reading the Numbers on a Set
A label like 1-1/4 inch rabbeting names the cutter diameter, not the shank. The shank size is listed separately, and a set that mixes shanks forces you to confirm which collet each bit needs before you load it. Larger profiles pull more power from the motor, so evaluate router power and performance the same way you would assess a plunge router before committing to a machine.
Carbide-Tipped vs. High-Speed Steel
The cutting edge material sets the price and the lifespan. Carbide-tipped bits hold an edge several times longer than high-speed steel on abrasive materials like plywood, particleboard, and MDF, which is why carbide dominates the middle and upper price ranges. High-speed steel still shows up in budget sets and in bits meant for softwoods only.
Value sets take two routes. One packs many profiles into a single box: a 15-piece router bit set covers joinery, edging, and trimming in one purchase, but hands-on reviews show per-bit quality spreads wider as the count goes up. The other route sells five strong bits and lets you add singles later. For most shops the second route wastes less money, because you never pay for profiles you do not use.
| Property | Carbide-tipped | High-speed steel |
|---|---|---|
| Edge life | Long, resists abrasion | Short on plywood and MDF |
| Cost per bit | Higher | Lower |
| Resharpening | Practical several times | Rarely worth the cost |
| Best for | Plywood, MDF, hardwoods | Softwoods and light use |
Price follows the edge material closely. A carbide-tipped set at $59 to $90 undercuts buying the same profiles in singles, but five carbide bits at $12 apiece still cost more than five high-speed steel bits at $6 apiece. The difference buys edge life measured in hours of plywood cutting, not minutes.
Edge Life and Resharpening
Carbide edges tolerate resharpening a few times before the body gives out. Resharpening costs a fraction of a new bit, but it only makes sense on quality carbide. Cheap edges dull fast, then cost more to service than to replace. The practical rule: buy the best carbide you can afford for the bits you use weekly, and let budget steel handle occasional softwood work.
Storing and Protecting Your Bits
A set usually ships with a case, and the case is part of the value. A molded or wood box keeps carbide edges from knocking into each other, which is the fastest way to chip a cutter. A five-piece set at $59 with a usable case still beats buying the same bits loose if the case keeps them sharp for years.
Workshops that outgrow the box have better options. Foam inserts cut to fit a drawer or a pegboard-mounted drill guide organize bits by profile and protect the edges. Custom DIY router bit storage inserts built from foam and pegboard drill guides hold each bit in its own pocket, so you can grab the right cutter without touching the edges of the others.
Bits also wear from misuse faster than from age. Running a bit too fast in a handheld router, forcing it through the cut, or letting it overheat in a table leaves dull edges that no storage system can fix. Set feed rates so the motor note stays steady, and stop when the cut starts to burn.
Case, Foam, or Pegboard
- Molded case: portable and protective in transit, but limited capacity.
- Drawer foam: holds many bits flat and keeps them visible.
- Pegboard and drill guides: keeps bits above the bench, sized to your set.
Specialty Cuts: Drip Edges and Post Protection
Beyond the five basics, a few specialty cuts earn their place on exterior and structural work. A drip edge routed into the bottom of a post or fence rail sheds water away from end grain, where rot starts. The same rabbeting bit that cuts shelf dadoes can create that shoulder, and a rounding over bit removes the sharp corner that holds water. The technique for cutting drip edges on posts and protecting the end grain follows a few depth rules that keep the cut functional without weakening the member.
Fence posts and deck rails sit in weather all year, and end grain drinks water like a wick. A routed drip edge breaks the path: water beads on the shoulder and falls clear instead of running into the end grain. Builders who skip this step see the difference in split ends and rot within a couple of seasons.
Routing a Drip Edge Step by Step
- Mark the cut line on the bottom face of the post or rail.
- Set the bit depth to one-third of the member thickness or less.
- Clamp the workpiece and run the cut from one end to the other.
- Sand the routed shoulder so water sheds cleanly.
Mortising Bits Beyond Hinges
The straight mortising bit also cuts stopped dados, inlay pockets, and channel grooves. Its flat bottom makes it the go-to cutter for any recess that ends inside the stock rather than at an edge.
Shank Sizes and Collets: 1/4 vs. 1/2 Inch
The shank is the part of the bit the collet grips, and its diameter changes how the bit behaves. A 1/2 inch shank is roughly four times stiffer than a 1/4 inch shank of the same length, so it deflects less under load and leaves smoother cuts. Larger cutters, like a 1-1/2 inch rounding over bit, run noticeably cleaner on a 1/2 inch shank.
Trim routers and compact machines almost always take 1/4 inch collets. Full-size routers accept both, either through interchangeable collets or a single collet that takes adapters. Check the collet before buying a set: if the machine only takes 1/4 inch, the single 1/2 inch shank bit in a mixed set is useless to you.
Shank choice also affects cutter selection at the store. Many of the largest profile bits only come with 1/2 inch shanks, so a trim-router-only shop is locked out of those cutters entirely. If you plan to grow into big roundover and panel bits, a full-size router with a 1/2 inch collet removes the ceiling.
| Shank | Stiffness | Typical machines | Best for |
|---|---|---|---|
| 1/4 inch | Lower | Trim routers | Small profiles and light work |
| 1/2 inch | Higher | Full-size routers | Large cutters and production runs |
Building a Bit Collection That Earns Its Space
A five-piece set covers the first season of work, and the collection grows when jobs demand it. Add profiles one at a time as projects require them: a dovetail bit for drawers, a slot cutter for panels, a chamfer bit for decorative edges. The router bit types for woodworking extend well past the starter five, and each one answers a specific joint or edge.
Price math favors sets at the entry level. At roughly $12 per bit for a five-piece set on sale, versus $18 per bit at full retail, the set wins even if you use four of the five profiles. Some 15-piece sets sell for around $45, which pushes the per-bit cost below $3, but those savings evaporate if half the profiles sit unused or dull quickly. Singles make sense once you know exactly which cutter you need. First-time buyers should also weigh the machine itself: selecting a wood router for beginners means comparing fixed-base and plunge designs, since the base style changes how you use every bit you buy.
Quality beats count on the bits you reach for daily. A five-piece set built on solid carbide and clean geometry outperforms a 20-piece set with weak steel edges on the same jobs, and the difference shows in tear-out, burning, and how often you stop to sharpen. The set you choose today should leave room to grow: five profiles cover the basics, and the next set or singles should fill gaps rather than duplicate what you already hold, which is how a collection stays useful instead of just large.