Router bits that earn their place in a working shop

A handheld or table-mounted router becomes a different tool every time you swap a bit. The motor delivers the cutting force, but it is the steel cutter that decides whether a project ends up looking like cabinetry or like a weekend accident. Choosing the right set of cutters shapes both the work and the workflow, turning repetitive jobs into one-pass operations and opening up joinery that would be tedious by hand.

For Australian woodworkers, the mix of available hardwoods, the coastal humidity in Sydney and Brisbane, and the dry interior air around Adelaide or Perth all influence how bits behave. Stock from local mills often arrives with different moisture content than imported pine, and cutters that chew through Tasmanian oak happily will still punish you if you plunge them into a dry board without checking first. A core set of ten router bits covers almost every job the average garage workshop will face, whether you buy online or pick up bargain trays at a local Bunnings.

Straight bits and flush-trim cutters

The straight bit is the simplest cutter in the box and the first one most beginners buy. It hogs out mortises, cuts grooves for inlays, and squares up dadoes when run against a straightedge. A 12mm or half-inch diameter with a short cutting length handles most general tasks, and a longer-reach version earns its keep when you need to clear out a deep cavity or trim through thick slabs of recycled blackbutt.

Flush-trim bits ride against a bearing, letting you follow a template or trim edge-banding flush. They are the secret behind clean laminate worktops, hidden door hinges, and matched panels on a cabinet side. If you work with spotted gum or restore older furniture, the bearing-guided version removes guesswork when matching an existing profile. Before shaping any rough board, a quick read of a moisture meter guide helps avoid tear-out from over-dry timber.

Round-over and chamfer work

Round-over cutters soften the hard edges of tabletops, shelves, and chair arms, turning a splinter-prone corner into something comfortable to lean on. A 6mm radius covers most furniture work, and a quarter-inch version handles heavier dining pieces. Australian dining tables built from reclaimed jarrah or messmate often rely on a generous round-over to balance the visual weight of a thick slab.

Chamfer bits cut a flat 45-degree angle rather than a curve. They finish off live-edge pieces, dress the ends of structural beams, and tidy up the edges of cutting boards. Many workshops keep both a small chamfer for joinery cleanup and a larger one for architectural trim, since the difference between a 3mm and a 12mm chamfer changes the look of a board entirely. For shops working out of a converted garage workshop, the chamfer bit is especially handy for dressing stock that arrives with inconsistent mill marks.

Rabbet and dado joinery

Rabbet bits cut a step along the edge of a board, the foundation of cabinet backs, picture frames, and shallow joinery. A bearing-guided rabbet lets you follow curved or irregular edges, which helps when fitting a back panel into a hand-built sideboard or trimming a routed recess in a craft project.

Dadoes are flat-bottomed grooves cut across the grain, used for shelving, drawer slides, and bookcase dividers. A stack of dado cutters lets you adjust width in 1.6mm increments, replacing hours of mallet work. Hobbyists building bunk beds or toy storage in suburban garages will reach for these more often than any decorative profile. A clean dado depends on a sharp cutter and a steady feed rate, especially when working through stringy Tasmanian oak or dense ironbark.

Cove and roman ogee profiles

Cove bits cut a concave curve into a board edge, creating a classic profile used on drawer fronts, picture rails, and decorative trim. They pair naturally with a round-over bit on the opposite edge, producing a moulding that looks like it came off a heritage cedar window. In Queensland and New South Wales workshops restoring federation-style furniture, cove cutters help replicate the soft profiles found on original skirtings.

Roman ogee bits combine a concave and convex curve into one sweeping S-shape. They are the cutter behind traditional picture-frame mouldings, decorative cornices, and ornate cabinet doors. Few bits change the personality of a plain board quite like an ogee, though they demand a slower feed rate and a couple of test passes on scrap before committing to the final piece.

Panel-raising and door-lip bits

Panel-raising bits turn a flat board into a fielded panel, the heart of a shaker cabinet door or a heritage wardrobe front. They require a router table and careful fence setup, but the result replaces hours of hand-shaping. For anyone building their own kitchen fitout or replacing damaged panels in a restored sideboard, this cutter saves the entire project.

Door-lip bits create the rabbeted profile that holds glass or timber panels in a frame, completing the door once a panel-raiser has done its work. Together they form the last pair in a kit aimed at full joinery rather than simple trimming. Pairing router work with hand tools keeps the workshop honest, and a few hours spent restoring a hand plane brings back the quieter skills that routers cannot replace.