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Profiles & cutters

The best router bits for 2026

The aisle that never ends: the German catalog alone lists over 150,000 of them. We cut through it by job — straight and spiral for grooves, flush trim for templates, bearing-guided profiles for edges — plus what separates a bit that stays sharp from one that burns on the third meter.

By

What we recommend

  1. Pair of up-cut spiral router bits, product photograph

    SpeTool Upcut spiral, 8 mm shank, 32 mm cut, pair

    A spiral bit lifts its waste out of the cut instead of packing it in. For grooves and mortices, nothing straight competes.

    Shank
    8 mm (0.31 in)
    Cutting length
    32 mm (1.26 in)
    Geometry
    Up-cut spiral
    Material
    Solid carbide
    Quantity
    2
    Amazon reference
    B0CP3HY4R3 (identical on 5 markets)
    EAN
    0792933649646
    • Up-cut spiral clears waste upward, so a deep groove does not pack
    • Solid carbide rather than brazed tips
    • Up-cut lifts the top fibers, so the surface edge can chip on veneer

    Best for: Grooves, housings and mortices in solid timber and ply

    Search Amazon for this model
  2. Bosch flush trim router bit with bearing, product photograph

    Bosch Expert for Wood flush trim, Ø 16 mm

    The one bit that turns a router into a copying machine. Make the template once, cut the part as often as you like.

    Cutting diameter
    16 mm (0.63 in)
    Working length
    20 mm (0.79 in)
    Overall length
    60 mm (2.36 in)
    Guide
    Bearing
    Part number
    2608629385
    Amazon reference
    B00SJ8XU70 (identical on 6 markets)
    EAN
    3165140802321
    • Bearing-guided, so the template does the steering
    • One reference and one EAN across all six markets
    • 20 mm (0.79 in) working length limits the thickness you can trim in one pass

    Best for: Copying a shape repeatedly — templates, patterns, repairs to matching parts

    Check price on Amazon
  3. ENT twelve-piece carbide router bit set, product photograph

    ENT 09012, 12-piece carbide set, 8 mm shank

    The set that gets a new router working. Expect to use four of the twelve, and to buy those four again in better quality later.

    Quantity
    12
    Shank
    8 mm (0.31 in)
    Material
    Carbide tipped
    Part number
    09012
    Amazon reference
    B007HMZRWU (identical on 5 markets)
    EAN
    4040932090126
    • A useful way to discover which profiles you actually need
    • One reference and one EAN across five European markets
    • Sets are priced by quantity: the profiles you never use subsidize the four you do

    Best for: A new router owner who does not yet know which bits they need

    Search Amazon for this model
  4. Six millimeter straight router bit with 8 mm shank, product photograph

    ASNOMY AS0161-1PST6, 6 mm straight bit, 8 mm shank

    The most-used bit in any router drawer, at eleven euros — and a listing that calls itself a set without ever saying how many bits are in it.

    Cutting diameter
    6 mm (0.24 in)
    Shank
    8 mm (0.31 in)
    Cutter
    YG6 carbide
    Shank steel
    C45
    Edges
    Three, including a cutter on the bottom face
    Part number
    AS0161-1PST6
    Availability
    No EAN published — other markets could not be verified
    Amazon reference
    B0DGCGZDK7
    • A bottom cutter, so the bit can plunge into the middle of a panel
    • Three cutting edges rather than the usual two
    • The listing calls itself a set and never states how many bits are supplied

    Best for: Grooves, housings and shelf trenches in solid timber, MDF and ply

    Search Amazon for this model
  5. Seven-piece roundover router bit set with 8 mm shanks, product photograph

    NICAVKIT NI0075-7P, seven roundover bits, 8 mm shank

    Seven radii for €30. The roundover is the profile most people cut most often, and owning the whole range removes the guesswork.

    Quantity
    7
    Shank
    8 mm (0.31 in)
    Radii
    2, 3, 4, 5, 6, 8 and 10 mm (0.39 in)
    Cutters
    YG6 carbide
    Body
    1045 hardened steel
    Part number
    NI0075-7P
    Availability
    No EAN published — other markets could not be verified
    Amazon reference
    B0FLDCMW5P
    • Seven radii from 2 to 10 mm (0.08 to 0.39 in) covers almost every furniture edge
    • Carbide cutters on a hardened steel body at about four euros a bit
    • No EAN, so other markets could not be verified

    Best for: Softening every edge on a piece of furniture without buying bits one at a time

    Search Amazon for this model
  6. Slot cutter set with interchangeable bearings, product photograph

    Akylin AJR000807DELK slot cutter set, 8 mm shank

    Interchangeable bearings turn one cutter into several depths of groove — and the listing cannot decide whether it ships five bearings or six.

    Quantity
    2 cutters
    Shank
    8 mm (0.31 in)
    Cutter diameter
    32 and 35 mm (1.38 in)
    Cutting height
    12.7 mm (0.50 in)
    Bearings
    9.5, 12.7, 16, 19, 22.2 and 28.6 mm (1.13 in)
    Body
    High carbon steel with carbide edges
    Part number
    AJR000807DELK
    Availability
    No EAN published — other markets could not be verified
    Amazon reference
    B0DHVHGJY5
    • Six bearing sizes give six groove depths from one cutter
    • A rust-inhibiting coating on the body, which matters on a tool that sits in a drawer
    • The title says five adjustable bearings and the description says six, one already fitted

    Best for: Cutting grooves for cabinet backs and drawer bottoms from the edge of a board

    Search Amazon for this model
  7. Four-flute carbide dovetail cutter with straight shank, product photograph

    AUNMAS 8 mm shank dovetail cutter, 60 mm

    The shank will fit a router. Everything the manufacturer says about the cutter is about steel, cast iron and lathes.

    Shank
    8 mm (0.31 in), straight
    Cutter length
    About 60 mm (2.36 in)
    Flutes
    4
    Material
    Carbide
    Intended use
    Metalworking — slot milling and drilling
    Part number
    AUNMAS43v7th1rk0-12
    Availability
    No EAN published — other markets could not be verified
    Amazon reference
    B0HCX9MD8G
    • Solid carbide with four flutes, which clears chip well
    • An 8 mm (0.31 in) straight shank fits the common European collet
    • The manufacturer names stainless, carbon steel, cast iron, die steel, alloy steel and tool steel — not timber

    Best for: Slot and dovetail milling in metal on a machine shop lathe, which is what its maker describes

    Search Amazon for this model
  8. SICWOOD six piece straight router bit set, product photograph

    SICWOOD SWST040601US, six straight bits, 1/4 in shank

    Six diameters, two flutes and a published cutting height — the only cut depth on the American half of this shelf.

    Shank
    1/4 in — 6.35 mm
    Cutting diameters
    Six, published: 3/4, 5/8, 1/2, 3/8, 5/16 and 1/4 in — 19, 15.9, 12.7, 9.5, 7.9 and 6.35 mm (0.25 in)
    Cutting height
    13/16 in — 20.6 mm, published, the only cutting height on the American half of this shelf
    Flutes
    Two, stated to give a smooth planed finish at a medium feed rate
    Carbide grade
    C3 micrograin tungsten carbide, stated for a sharper and longer lasting edge
    Materials
    Chipboard, MDF, plywood and hardwood, stated abrasive
    Machines
    CNC, table-mounted and handheld routers
    Quantity
    6 bits
    Part number
    SWST040601US
    Amazon reference
    B0CR5QDWS6
    EAN
    0797430381440
    • Publishes every cutting diameter, which the sets on this shelf do not
    • Publishes the cutting height, which decides how deep a housing can be cut
    • Twenty point six millimeters of cut will not trench a 25 mm (0.98 in) shelf in one pass

    Best for: Housings, grooves and rebates at six fixed widths, in MDF and hardwood

    ≈ $17
    Check price on Amazon
  9. Totowood four piece roundover router bit set with bearings, product photograph

    Totowood yjd-4, four roundover bits, 1/4 in shank

    Four radii with bearings, on a page that claims carbon steel, tungsten steel alloy and C2 carbide for the same cutters.

    Shank
    1/4 in — 6.35 mm
    Radii
    Four, published: 1/8, 3/16, 1/4 and 5/16 in — 3.2, 4.8, 6.35 and 7.9 mm (0.31 in)
    Guide
    A bearing on each bit
    Cutter material
    Three claims on one page: high-quality carbon steel, high-quality tungsten steel alloy, and premium C2 carbide inserts
    Materials
    Solid wood, hardwood, softwood, MDF, particle board, plywood and acrylic
    Machines
    CNC, engraving machines, trimming machines, handheld and table-mounted routers
    Quantity
    4 bits
    Part number
    yjd-4
    Amazon reference
    B0C5DVBNLS
    EAN
    0755494635510
    • Publishes all four radii, in the title and again in the first bullet
    • A bearing on every bit, so the edge guides itself
    • Three different cutter materials are claimed on one page

    Best for: Softening every edge on a piece of furniture, in quarter-inch-shank imperial radii

    ≈ $11
    Check price on Amazon
  10. KOWOOD fifteen piece router bit set in a wooden case, product photograph

    KOWOOD 15-piece set, 1/4 in shank

    Fifteen bits in a wooden case, on five bullets shared word for word with the maker's 24-piece set.

    Shank
    1/4 in — 6.35 mm, stated to give greater stability and less vibration
    Quantity
    15 bits · None is named or dimensioned
    Carbide grade
    Not published by the maker. · An alloy blade on a hardened steel body is stated
    Geometry
    An anti-kickback design, stated
    Case
    A wooden case, stated to protect the bits between jobs
    Materials
    Wood, MDF, particle board, plywood and compact panel · Stated explicitly not for ferrous metal or non-wood
    Shared text
    The five published features are identical, word for word, to the maker's 24-piece set on this shelf
    Part number
    SUPTMAX
    Amazon reference
    B07V5ZCV3M
    EAN
    0778695709637
    • A wooden case rather than a blow-molded tray
    • States what it is not for, which almost nothing on this shelf does
    • Not one of the fifteen bits is named or dimensioned

    Best for: A new router owner finding out which profiles they actually need

    ≈ $27
    Check price on Amazon
  11. KOWOOD twenty-four piece router bit set in a wooden case, product photograph

    KOWOOD 24-piece T-shape set, 1/4 in shank

    The same five bullets as the 15-piece set, nine bits more — and a title that says 24A.

    Shank
    1/4 in — 6.35 mm, stated to give greater stability and less vibration
    Quantity
    The title says "Sets of 24A Pieces"; the fifth feature says "Includes 24 Pieces" · None of the twenty-four is named or dimensioned
    Carbide grade
    Not published by the maker. · An alloy blade on a hardened steel body is stated
    Geometry
    An anti-kickback design, stated
    Case
    A wooden case, stated to protect the bits between jobs
    Materials
    Wood, MDF, particle board, plywood and compact panel · Stated explicitly not for ferrous metal or non-wood
    Shared text
    The five published features are identical, word for word, to the maker's 15-piece set on this shelf
    Part number
    Y-134
    Amazon reference
    B07Q9Q7735
    EAN
    0603977701200
    • Twenty-four profiles for less than double the fifteen-piece set
    • A wooden case with the bits held apart
    • “24A Pieces” in the title and “24 Pieces” in the bullet

    Best for: A router table that will see a wide range of profiles and an unknown amount of each

    ≈ $46
    Check price on Amazon
  12. MNA twenty-five piece router bit set in a storage case, product photograph

    MNA RS-25P4, 25-piece set, 1/4 in shank

    Twenty-five bits, an American carbide classification, and a compatibility list that names a rival on this shelf.

    Shank
    1/4 in — 6.35 mm, stated universal
    Quantity
    25 bits · None is named or dimensioned · Stated the most popular carbide-tipped bits
    Carbide grade
    C3, stated as the American industry classification, for wear resistance and sharp edges
    Standard
    Stated to match the requirement of the American dimension and standard
    Case
    A protective storage case
    Materials
    MDF, hardwood, softwood and particle board
    Compatibility
    Ten router brands named: MNA, Kowood, Bosch, DeWalt, Makita, Milwaukee, Porter & Cable, Skil, Ryobi and Black & Decker — the only listing on this shelf to name a brand that is also on it
    Part number
    RS-25P4
    Amazon reference
    B095W4V3K6
    EAN
    0770773583429
    • Names the carbide grade and the classification system it comes from
    • Ten router brands named, which is the longest compatibility list here
    • Not one of the twenty-five bits is named or dimensioned

    Best for: A quarter-inch router that will meet a wide range of profiles, in a shop working to American dimensions

    ≈ $40
    Check price on Amazon
  13. Hiltex 10108 twenty-four piece tungsten carbide router bit set, product photograph

    Hiltex 10108, 24-piece set, 1/4 in shank

    The only YG8 carbide on this shelf, in the only case with a label in every slot.

    Shank
    1/4 in — 6.35 mm, stated universal
    Quantity
    24 bits · None is named or dimensioned
    Carbide grade
    Machined YG8 tungsten carbide, stated heat resistant — the only YG8 on either half of this shelf
    Body
    Hardened solid alloy steel with a powder-coated finish
    Guides
    Select bits have ball-bearing rollers, stated for better alignment · Which bits is not published
    Case
    A storage box with labeled slots for each bit — the only labeled case on either half of this shelf
    Uses
    Edging, trimming, veining and grooving
    Part number
    10108
    Amazon reference
    B07GTF69PG
    EAN
    0816914022546
    • A labeled slot for every bit, which is what makes a 24-piece set usable
    • Names YG8, a specific carbide grade rather than a classification band
    • Not one of the twenty-four bits is named or dimensioned

    Best for: A 24-piece set that will still be identifiable in three years, because the case says what each bit is

    ≈ $39
    Check price on Amazon
  14. Bosch RBS030MBS thirty piece carbide tipped router bit set, product photograph

    Bosch RBS030MBS, 30-piece set

    The most expensive set on this shelf, and the only router bit listing here that does not publish its shank size.

    Shank
    Not published by the maker. Neither the title nor any of the five features gives a diameter — the only router bit listing on either half of this shelf of which that is true
    Quantity
    30 bits · None is named or dimensioned
    Carbide grade
    Micrograin carbide, stated for a consistently smooth finish and superior wear resistance · No classification band is named
    Coating
    An anti-friction coating, stated to minimize residue build-up — the only anti-friction claim on either half of this shelf
    Materials
    Soft and hard wood, and wood composites
    Case
    A plastic storage case
    Part number
    RBS030MBS
    Amazon reference
    B0B71N7TY9
    EAN
    0000346668711
    • An anti-friction coating, which is what stops pitch building on a cutter
    • Micrograin carbide, which holds a keener edge than a coarse grade
    • No shank diameter published, which on this shelf is the fitment question

    Best for: A workshop that already knows which collet it has and is buying on the name

    ≈ $135
    Check price on Amazon

For which need, in router bits

Using large bits

Shank diameter governs rigidity. A large bit on a thin shank vibrates and leaves ripples on the edge.

Hiltex 10108, 24-piece set, 1/4 in shank

Building a starter set

A boxed set covers the common profiles for far less than bits bought singly, provided you accept average quality.

Bosch RBS030MBS, 30-piece set

Fitting your router's collet

A twelve-millimeter shank will not go into an eight-millimeter collet, and nothing fixes that. The stated shank diameter is the first sort, before the cutter's profile.

Akylin AJR000807DELK slot cutter set, 8 mm shank

For whom, within router bits

First steps
A straight bit, a round-over and a flush-trim cover the essentials. The rest is bought project by project, not in advance.
Table work
Large profile bits demand a 12 mm (0.47 in) shank and a powerful machine. On 8 mm (0.31 in) they vibrate and become dangerous.
Templates and copies
A bearing-guided flush-trim bit turns a router into a copying machine. It is probably the most useful bit in the workshop.

What each advantage costs, on router bits

8 mm (0.31 in) shank against 12 mm (0.47 in)
12 mm (0.47 in) is more rigid and limited to a catalog of large bits; 8 mm (0.31 in) opens a wider and cheaper choice while capping out on big diameters.
Boxed set against chosen pieces
A boxed set is far cheaper per bit and contains profiles you will never use. Two good bits beat fifteen mediocre ones.
Solid carbide against inserts
Solid carbide can be re-sharpened a few times; inserts are rotated then replaced without taking the tool out of service. On large bits, inserts win.

Before buying router bits

Should I buy 6, 8 or 12 mm (0.47 in) bits?

According to the machine's collet, and many accept several diameters. 8 mm (0.31 in) is the best domestic compromise; 12 mm (0.47 in) becomes necessary for large profile bits.

How far should the bit go into the collet?

Almost fully, then back out two or three millimeters. Bottomed out, the bit jams; not engaged enough, it pulls out.

How many passes for a deep cut?

Two to four depending on depth and the density of the wood. A single twenty-millimeter pass burns the wood and puts the bit at risk.

Why does my bit burn the wood?

A bit clogged with resin, too slow a feed, or a rotation speed too high for the diameter. Large bits must run markedly slower.

How do I clean a bit?

A resin cleaner and a brass brush, never an abrasive that would attack the carbide edge. A clean bit cuts like a new one.

Do bearing-guided bits wear out?

The bearing does, and it is replaced separately for a couple of euros. A seized bearing burns the very edge it was meant to follow.

What speed for what diameter?

The larger the bit, the more you must slow down. A 50 mm (1.97 in) bit at full speed goes well beyond its permissible rim speed.

Will a large-diameter cutter run in a small router?

The maximum safe diameter depends on the speed and the base opening. A fifty-millimeter panel cutter wants a machine that slows down, otherwise the rim speed becomes dangerous.

What to remember about router bits

Three good bits beat a set of fifteen. Choose the shank diameter according to the bits you are aiming at, slow down on large diameters, and clean off the resin — a clogged bit behaves exactly like a worn one.

A quick look at router bits

    Router bits in one table

    A column holds only if four machines in five publish the figure. Below that, it would compare what the manuals left out.

    ModelPriceShank
    Totowood yjd-4, four roundover bits, 1/4 in shank$111/4 in — 6.35 mm
    SICWOOD SWST040601US, six straight bits, 1/4 in shank$171/4 in — 6.35 mm
    KOWOOD 15-piece set, 1/4 in shank$271/4 in — 6.35 mm, stated to give greater stability and less vibration
    Hiltex 10108, 24-piece set, 1/4 in shank$391/4 in — 6.35 mm, stated universal
    MNA RS-25P4, 25-piece set, 1/4 in shank$401/4 in — 6.35 mm, stated universal
    KOWOOD 24-piece T-shape set, 1/4 in shank$461/4 in — 6.35 mm, stated to give greater stability and less vibration
    Bosch RBS030MBS, 30-piece set$135Not published by the maker. Neither the title nor any of the five features gives a diameter — the only router bit listing on either half of this shelf of which that is true
    Akylin AJR000807DELK slot cutter set, 8 mm shank—8 mm (0.31 in)
    Bosch Expert for Wood flush trim, Ø 16 mm——
    AUNMAS 8 mm shank dovetail cutter, 60 mm—8 mm (0.31 in), straight
    ENT 09012, 12-piece carbide set, 8 mm shank—8 mm (0.31 in)
    NICAVKIT NI0075-7P, seven roundover bits, 8 mm shank—8 mm (0.31 in)
    SpeTool Upcut spiral, 8 mm shank, 32 mm cut, pair—8 mm (0.31 in)
    ASNOMY AS0161-1PST6, 6 mm straight bit, 8 mm shank—8 mm (0.31 in)

    What each budget cuts on this shelf

    Lower range

    $11 – $17

    2 models

    Totowood yjd-4, four roundover bits, 1/4 in shank, SICWOOD SWST040601US, six straight bits, 1/4 in shank

    Mid range

    $27 – $39

    2 models

    KOWOOD 15-piece set, 1/4 in shank, Hiltex 10108, 24-piece set, 1/4 in shank

    Upper range

    $40 – $135

    3 models

    MNA RS-25P4, 25-piece set, 1/4 in shank, KOWOOD 24-piece T-shape set, 1/4 in shank, Bosch RBS030MBS, 30-piece set

    Where the data is read

    Specifications: manufacturer sheets for woodworking machines and the matching Amazon product pages. Prices and availability: Keepa. Every figure in this table names its source.

    Most recent revision in this category: October 7, 2026.

    How we assess router bits

    Prices quoted in these summaries are dated readings. The live price is shown next to each product.