Tools & Abrasives buying guideLast updated October 2026

CNC Router Bits and Profile Wheels

Tooling that shapes sinks, edges and carvings.

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Price level
Premium
Best to buy
Feb–Apr, Sep–Nov
Top sources
Italy flagSouth Korea flagChina flag
Close-up of diamond-coated bits

Photo: Junkyardsparkle, CC0

Overview

What it is

CNC work centres and edge machines rely on diamond tooling: fingerbits and core drills for cut-outs, profile wheels that grind a complete edge shape (bullnose, ogee, dupont and more) in one pass, and polishing wheels to finish the profile.

Sintered tools last longest; electroplated tools reproduce fine detail. Most stone CNC tools use a ½" gas thread or a tool-holder taper.

Types
Fingerbits, core bits, profile and polishing wheels, engravers
Mounting
½" gas thread or CNC tool holders
Bonds
Sintered (long life), electroplated (detail)
Profiles
Flat, bevel, bullnose, ogee, dupont, cove

Applications

Best used for

  • Sink cut-outsFingerbits and core bits.
  • Edge profilingRoughing and polishing wheel sets.
  • Carving and letteringSmall engraving tools.
  • Drainboards and flutingGrooving tools.

Origins

Which countries to source from

The producing countries that matter for cnc router bits and profile wheels, what each is known for, and a direct link to vendors there.

Timing

Best time of year to buy

Consumables are bought all year, so timing is about stock: order ahead of the Lunar New Year shutdown in China and the August break in Italy, and buy trial quantities at the spring and autumn fairs.

  1. Jan: slower or pricier
  2. Feb: best time to buy
  3. Mar: best time to buy
  4. Apr: best time to buy
  5. May: normal
  6. Jun: normal
  7. Jul: normal
  8. Aug: slower or pricier
  9. Sep: best time to buy
  10. Oct: best time to buy
  11. Nov: best time to buy
  12. Dec: normal
Best time to buy Normal Slower or pricier
  • Chinese toolmakers close for Lunar New Year; place large orders by early December.
  • Italian and Spanish makers slow in August.
  • Hold four to eight weeks of stock of your fastest-moving tools to ride out shipping delays.

Import costs

Tariffs and import duties

Base duties for the main import markets, the extra US surcharge by origin, and the trade remedies to check before you quote a landed price.

HS codes

  • 8207.19 / 8207.90Interchangeable tools with diamond working parts

Base import duty (MFN)

  • United States2.9% to 5%Router bits for woodworking are dutiable at 5 percent, while other router bits are dutiable at 2.9 percent. China-origin imports face an additional 25 percent duty.
  • European Union2.7%
  • United Kingdom0%Imports under heading 8207 are generally duty-free.

Importing into the US? Add the 2026 origin surcharge

Section 301 rates in force since 24 July 2026, stacked on the MFN rate above.

  • Italy flagItaly10% min.Section 301 (2026) tops the duty up to at least 10% in total; no surcharge if MFN is already higher.
  • South Korea flagSouth Korea12.5% min.Section 301 (2026) tops the duty up to at least 12.5% in total; no surcharge if MFN is already higher.
  • China flagChina+12.5% & 30112.5% Section 301 (2026) plus the legacy China Section 301 duty (25% on most stone and machinery lines), on top of MFN.
  • China-origin tools carry a 25 percent Section 301 surcharge.

Rates checked October 2026. Indicative rates for planning, not a customs ruling. Duties depend on the exact tariff line, origin, trade agreements and the rules in force on the day of entry. Confirm with a licensed customs broker before you price an order.

Before you order

Buying checklist

  1. 1Specify the thread or holder and your machine's rpm.
  2. 2Check profile radius drawings (R10, R20…) before ordering.
  3. 3Buy matching roughing and polishing wheel sets.
  4. 4Measure tool life in metres.

Price level: Profile wheel sets are a significant investment per profile.

Vendor Network

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