How to use a router — the feed direction rule, taking shallow passes, fitting bits safely, and the settings that stop burning and tear-out.
A router is the tool that turns flat boards into finished joinery. Rounded edges, decorative profiles, grooves, rebates, hinge recesses, perfectly matched curves — all of it comes from a router.
It is also the fastest-spinning tool most people own, often over 20,000 rpm, and it has one rule that beginners get wrong more than any other:
Feed direction. The bit spins clockwise viewed from above. If you move the router the wrong way, the bit tries to pull itself along the workpiece — a climb cut — and it will snatch out of your hands.
Get feed direction right, take shallow passes, and a router is controllable and genuinely satisfying. Get it wrong and it is the most alarming tool in the workshop. ⚠️
Alt text: “Handheld router cutting a round-over profile along a board edge with the bearing following the edge”
- Feed direction — the rule that matters
- Fixed base, plunge and trim routers
- Router bits explained
- Fitting a bit safely
- Depth of cut and multiple passes
- Speed and bit diameter
- How to make a cut, step by step
- Tear-out and burning
- Guiding the router
- Common mistakes (and how to fix them)
- Pro tips worth knowing
- The bits I recommend
- Frequently asked questions
- Your final checklist
Feed Direction — the Rule That Matters
Read this section twice. It is the difference between control and a tool snatching across your workpiece.
Looking down at a handheld router, the bit spins clockwise. You want to feed the router so the cutting edges push against your movement — that resistance is what keeps the tool steady and lets you control the cut.
| Situation | Feed direction | Memory aid |
|---|---|---|
| Outside edge of a board | ✅ Left to right | Keep the workpiece on your right |
| Inside edge of a frame or cut-out | ✅ Right to left | Reversed — you are inside the shape |
| Router table, fence work | ✅ Right to left | Router is upside down, so it reverses |
| Going around the outside of a board | Anticlockwise | Work around the perimeter |
| Going around an inside opening | Clockwise | Opposite of an outside edge |
Climb cutting is feeding the other way, so the bit’s rotation pulls the router along. It is not always forbidden — professionals use very light climb cuts to reduce tear-out on difficult grain — but for a beginner with a handheld router it is how you lose control of the tool.
If the router feels like it is fighting you, that is correct. If it feels like it is running away with you, stop — you are going the wrong way.
The simplest way to remember it: when routing the outside edge of a board, keep the workpiece on your right and walk left to right. Do that and you are always feeding correctly.
Fixed Base, Plunge and Trim Routers
| Fixed base | Plunge | Trim / palm | |
|---|---|---|---|
| Depth setting | Set before starting | ✅ Adjustable while running | Set before starting |
| Edge profiling | ✅ Excellent | Good | ✅ Excellent |
| Starting in the middle | ❌ No | ✅ Yes | ❌ No |
| Mortises and stopped grooves | ❌ No | ✅ Yes | No |
| Weight and control | Moderate | ⚠️ Heavier | ✅ Light, one-handed |
| Router table use | ✅ Best | Workable | Limited |
| Best first router | Good | ✅ Most versatile | Great second tool |
A plunge router is the most versatile single choice, because it can do everything a fixed base can plus start cuts in the middle of a panel. Many kits come with both bases and one motor, which is genuinely the best of both.
A trim router (palm router) is light, one-handed and superb for round-overs, chamfers and flush trimming. Many people find it becomes their most-used router for small work.
Router Bits Explained
| Bit | Cuts | Bearing? | Used for |
|---|---|---|---|
| Straight | Square-sided groove | No | Grooves, dados, mortises |
| Round-over | Rounded edge | ✅ Yes | Softening edges — the most used bit |
| Chamfer | 45° bevel | ✅ Yes | Angled edges |
| Rabbet (rebate) | Step along an edge | ✅ Yes | Panel backs, glazing rebates |
| Cove | Concave curve | ✅ Yes | Decorative edges |
| Ogee / Roman ogee | S-curve profile | ✅ Yes | Traditional mouldings |
| Flush trim | Copies a template | ✅ Yes | ✅ Template work, matching parts |
| V-groove | V channel | No | Sign carving, decorative lines |
| Dovetail | Angled slot | No | Dovetail joints with a jig |
Bearing-guided bits have a small roller bearing that rides along the edge of the workpiece or a template, setting the cut width automatically. They are the easiest bits to use freehand — the bearing does the guiding for you.
Non-bearing bits need a fence, edge guide or template to control where they cut.
Shank size: 1/4 inch and 1/2 inch are standard. Half-inch shanks are stiffer and vibrate less — use them where your router accepts them, especially on large bits. Never fit a 1/4-inch bit into a 1/2-inch collet without the correct reducer.
Fitting a Bit Safely
The collet is the tapered sleeve that grips the bit shank. Getting this wrong is genuinely dangerous, because a bit that comes loose at 20,000 rpm is a projectile.
- Unplug the router. Always, without exception.
- Insert the shank most of the way in — but do not bottom it out. Push it fully in, then withdraw it about 3mm before tightening.
- Tighten firmly with the spanner, holding the shaft lock or using two spanners.
- Check by hand that the bit cannot be pulled out or twisted.
Why not bottom it out? If the shank sits hard against the bottom of the collet, tightening pushes it back up slightly and it grips on a smaller area — or the bit can creep downward in use, deepening the cut unexpectedly. That small withdrawal is what lets the collet close evenly along the shank.
Also: insert at least three-quarters of the shank length. A bit hanging out on a short grip flexes and can snap.
Keep the collet clean. Resin and dust build-up stops it gripping properly. Wipe it and the shank before fitting.
Depth of Cut and Multiple Passes
The second most important habit after feed direction.
Take shallow passes. Removing a deep profile in one go overloads the bit, burns the wood, causes tear-out, strains the motor and makes the router far harder to control.
Rough guidance: around 3 to 6mm of depth per pass on softwood, less on hardwood and less again on large-diameter bits. On a deep round-over or a rebate, three light passes give a better result and less risk than one heavy one.
On a plunge router, use the turret stop to set your passes so you can step down consistently.
Speed and Bit Diameter
Larger bits have a much higher rim speed at the same rpm, so big bits must be run slower. Most routers have a variable speed dial for exactly this reason.
| Bit diameter | Speed | Notes |
|---|---|---|
| Up to 25mm (1in) | Full speed | Small round-overs, straight bits |
| 25–50mm (1–2in) | Reduce somewhat | Larger profiles |
| 50–65mm (2–2.5in) | ⚠️ Noticeably slower | Panel bits, big profiles |
| Over 65mm | ⚠️ Slowest setting | ✅ Router table only, never handheld |
Signs the speed is wrong: burning marks suggest too fast for the material or too slow a feed. Rough, chattery cuts and vibration suggest too slow a spindle speed for the bit, or a bit that needs a stiffer 1/2-inch shank.
Large panel-raising bits should only be used in a router table, never handheld. Their diameter and mass make a handheld router genuinely unmanageable.
How to Make a Cut, Step by Step
Step 1 — Unplug and fit the bit
Fully in, withdrawn 3mm, tightened firmly, checked by hand.
Step 2 — Set the depth
Shallow first pass. Plan your passes before starting.
Step 3 — Set the speed for the bit diameter
Step 4 — Clamp the workpiece
Securely, with clamps clear of the router’s path. A router will move an unclamped board.
Step 5 — Check feed direction before you start
Outside edge: workpiece on your right, move left to right. Inside opening: reversed.
Step 6 — Test on an offcut
Same material, same setup. Confirms depth, profile and that the bit is doing what you expect.
Step 7 — Rest the base flat, bit clear of the wood
Start the router and let it reach full speed.
Step 8 — Enter the cut steadily
Ease the bit into the material rather than plunging into it at the edge.
Step 9 — Move at a steady pace
Too slow burns the wood; too fast tears it and overloads the bit. Listen to the motor — a steady note means the pace is right.
Step 10 — Keep the base flat and the bearing in contact
Any tilt changes the profile. On bearing bits, keep light pressure so the bearing stays on the edge.
Step 11 — Route end grain first on all four edges
Then the long grain. See the tear-out section below.
Step 12 — Finish the pass, release and wait
Let the bit stop completely before lifting or setting down.
Tear-Out and Burning
Tear-out
Chunks of wood breaking away rather than being cut cleanly, usually at the end of a cut or on difficult grain.
The four-edge rule: when routing a profile all the way around a board, do the two end-grain edges first, then the two long-grain edges. Any tear-out at the end of an end-grain pass is removed when you rout the adjoining long edge. Do it the other way round and the tear-out is in your finished edge permanently.
Other fixes:
- Shallow passes — the biggest single factor.
- A very light finishing pass.
- A backer board clamped at the exit edge to support the fibres.
- Sharp bits. Dull carbide tears rather than cuts.
- Slower feed on figured grain.
Burning
Dark scorch marks, most common on cherry, maple and where you pause.
- Do not stop moving while the bit is in the cut — pausing burns instantly.
- Feed faster, within reason. Dwelling is the main cause.
- Reduce spindle speed on larger bits.
- Take a light final pass to remove existing burn marks.
- Clean the bit. Resin build-up on carbide causes friction and burning.
Guiding the Router
Freehand routing wanders. Every accurate cut is guided somehow.
- Bearing-guided bits — the bearing follows the workpiece edge. Easiest method for edge profiles.
- Edge guide — a fence that attaches to the router base and runs along the board edge. Good for grooves parallel to an edge.
- Straightedge clamped to the work — the router base runs against it. Remember to allow for the distance from bit to base edge.
- Template and flush trim bit — the bearing follows a template, so the bit copies its shape exactly. This is how you make identical parts, and it is one of the most useful router techniques there is.
- Router table — router mounted upside down under a table with a fence. Far safer and more accurate for small parts and large bits.
- Guide bushes — a collar in the base that follows a template, used with jigs for hinges and dovetails.
Common Mistakes (and How to Fix Them)
Mistake 1 — Wrong feed direction
What happens: the bit grabs and pulls the router across the work.
The fix: outside edges left to right with the workpiece on your right; reversed inside openings.
Mistake 2 — Too much depth in one pass
What happens: burning, tear-out, motor strain and poor control.
The fix: 3–6mm per pass, less on hardwood and large bits.
Mistake 3 — Bottoming the bit in the collet
What happens: poor grip, and the bit can creep in use.
The fix: insert fully, withdraw about 3mm, then tighten.
Mistake 4 — Pausing mid-cut
What happens: an instant burn mark.
The fix: keep moving whenever the bit is in the material.
Mistake 5 — Routing long grain before end grain
What happens: tear-out at the corners stays in the finished edge.
The fix: end grain first, long grain second.
Mistake 6 — Large bits handheld
What happens: the router is unmanageable and dangerous.
The fix: panel bits belong in a router table at low speed.
Mistake 7 — Unclamped workpiece
What happens: the board moves and the cut is ruined, or worse.
The fix: clamp everything, with clamps clear of the router path.
Mistake 8 — Setting the router down while the bit spins
What happens: the bit catches the bench and the tool walks off.
The fix: release, wait for silence, then set down.
Pro Tips Worth Knowing
Always test on an offcut
Same material, same setup. It confirms depth, profile and feed direction before you touch the real workpiece.
Rout end grain first on all four edges
The single most useful sequencing tip for edge profiles.
Keep bits clean
Resin build-up on carbide causes burning and poor cuts. A pitch and resin remover restores them in minutes.
Buy 1/2-inch shank bits where you can
Stiffer, less vibration, better finish — particularly on larger profiles.
Use a router table for small parts
Anything you cannot clamp safely should go to the table, where the workpiece moves and the tool stays put.
Mark the direction on your workpiece
An arrow in pencil before you start. It sounds excessive and it prevents the one mistake that matters most.
The Bits I Recommend
A router is only as useful as the bits you own, and a starter set covers the profiles you will actually reach for.
15-Piece Router Bit Set, 1/4-Inch Shank, Tungsten Carbide
Best Starter Bit Set★★★★☆ 4.4 out of 5 on Amazon
A starter set is the sensible way into routing, because it lets you find out which profiles you actually use before spending serious money on individual premium bits. This covers the common ones — round-over, chamfer, cove, straight, rabbet and flush trim — which between them handle the great majority of home woodworking.
The tungsten carbide cutting edges are the important detail: carbide holds an edge far longer than plain steel and handles manufactured boards like plywood and MDF, which blunt HSS bits quickly. The 1/4-inch shanks fit essentially every router including trim routers, which makes the set usable across whatever you own.
Why it works:
- ✅ Covers the profiles you actually use — round-over and chamfer alone justify a router
- ✅ Bearing-guided edge bits are the easiest to use freehand, since the bearing guides the cut
- ✅ Carbide edges survive plywood and MDF, which quickly dull cheaper steel
- ✅ 1/4-inch shanks fit every router including small trim routers
- ✅ Lets you learn what you need before buying premium individual bits
- ⚠️ Take shallow passes. 1/4-inch shanks flex more than 1/2-inch — do not force deep cuts
- ⚠️ Keep them clean. Resin build-up on carbide causes burning; a pitch remover restores them
- ⚠️ Never bottom the shank in the collet — insert fully, withdraw 3mm, then tighten
Best for: first-time router owners, edge profiling, rebates and grooves, template work, and general home woodworking.
Not for: large panel-raising profiles or heavy production work — those want 1/2-inch shank bits used in a router table.
🛒 Check Price on AmazonPrice and availability change often — the button shows the live Amazon price.
Frequently Asked Questions
Which direction should I move a router?
On the outside edge of a board, feed left to right with the workpiece on your right. On the inside of a frame or cut-out, it reverses — right to left. The bit spins clockwise viewed from above, and you want it cutting against your direction of travel. Going the other way is a climb cut: the bit pulls the router along and it snatches out of your hands. In a router table everything reverses again, because the router is upside down.
How deep can I cut in one pass with a router?
Around 3 to 6mm on softwood, less on hardwood and less again on large-diameter bits. Deep single passes cause burning, tear-out, motor strain and poor control. Three light passes give a better result and are far safer than one heavy one. Set your final pass to remove only a whisker — that very light finishing cut leaves a noticeably cleaner surface.
Why is my router burning the wood?
Usually because you paused, or you are feeding too slowly — dwelling in one spot burns almost instantly. Other causes are spindle speed too high for the bit diameter, a resin-clogged bit, and taking too deep a pass. Keep the router moving whenever the bit is in the material, reduce speed on larger bits, clean the bit with a pitch remover, and take a light final pass to remove existing burn marks.
Why should I not push the bit fully into the collet?
If the shank bottoms out against the base of the collet, tightening can push it back slightly so it grips over a smaller area — and the bit can creep downward in use, deepening the cut unexpectedly. Insert the shank fully, then withdraw it about 3mm before tightening. Also make sure at least three-quarters of the shank is gripped, or the bit will flex and can snap.
Which edges should I rout first?
The two end-grain edges first, then the two long-grain edges. Routing end grain tends to tear out at the far corner — but when you subsequently rout the adjoining long edge, that damage is cut away. Do it in the other order and the tear-out stays in your finished edge permanently. This four-edge sequence is one of the most useful habits in routing.
Do I need a plunge router or a fixed base?
A plunge router is the most versatile single choice, because it does everything a fixed base does plus starting cuts in the middle of a panel — mortises, stopped grooves, hinge recesses. A fixed base is steadier for edge profiling and better in a router table. Many kits include one motor with both bases, which is genuinely the best answer. A small trim router is an excellent light second tool for round-overs and flush trimming.
Your Final Checklist
- Router unplugged before fitting or changing bits
- Shank inserted fully then withdrawn about 3mm before tightening
- At least three-quarters of the shank gripped
- Collet and shank wiped clean
- Bit checked by hand — cannot pull or twist
- Depth set for a shallow first pass, passes planned
- Speed reduced for larger diameter bits
- Large panel bits used only in a router table
- Workpiece clamped, clamps clear of the router path
- Feed direction confirmed out loud before starting
- Test cut made on an offcut
- Router started with the bit clear of the wood
- Base kept flat, bearing kept in contact
- Kept moving — never paused mid-cut
- End-grain edges routed before long-grain edges
- Light finishing pass taken on visible profiles
- Bit allowed to stop completely before setting down
- Eye protection, hearing protection and dust mask worn
Related reading: how to use a circular saw, how to use a jigsaw, and wood dust safety.