A router (also: plunge router or trim router) is a power tool with a fast-spinning bit that is lowered into the workpiece from above. With a router you can shape profiles, cut grooves, make joints (mortise-and-tenon, dovetail) and finish edges. It is one of the most versatile woodworking tools.
What can you do with a router?
| Operation | Example |
|---|---|
| Profile shaping | Rounded edges, decorative mouldings on boards |
| Grooves | Rabbets for glass, grooves for back panels |
| Joints | Mortise-and-tenon, dovetail (with a jig) |
| Edge finishing | Roundover, chamfer, decorative edge |
| Recessing | Mortises for hinges, locks |
| Contours | Shaping with a template or guide bushing |
Types
| Type | Application |
|---|---|
| Fixed-base router | Set depth in advance, then route |
| Plunge router | Lower the bit into the workpiece from above |
| Trim router (laminate trimmer) | Lightweight, one-handed, for edge work |
| CNC router | Computer-controlled, for production runs |
Router bits
There are hundreds of bit types:
| Bit | Application |
|---|---|
| Straight bit | Grooves, rabbets |
| Profile bit | Decorative edges |
| Roundover bit | Rounded edges |
| Dovetail bit | Dovetail joints |
| Flattening bit | Surface flattening |
| Flush-trim bit | Copying shapes with a template |
Tips
- Always feed against the rotation — Move the router against the direction of bit rotation. Otherwise the bit will grab the workpiece.
- Multiple passes — Do not route the full depth in one pass. Work in steps of no more than 5-6 mm.
- Clamp the workpiece — A router requires two hands. The workpiece must be secured.
- Dust extraction — Routing produces a lot of fine dust. Connect a dust extractor.
Related terms
- Mortise-and-tenon joint
- Dovetail joint
- Circular saw
- Tongue and groove