What is the shank diameter of this router bit?

This groove cutter has an 8 mm shank, suitable for routers equipped with an 8 mm collet.

What are the cutting dimensions of this bit?

It features a cutting diameter of 20 mm, a working cutting length of 20 mm, and a total length of 60 mm.

Does this groove cutter have a guide bearing?

No, this straight router bit does not have a ball bearing. Guide it using a parallel fence, rail, or template.

What applications is this router bit suitable for?

It is designed for routing grooves, rebates, and recesses in solid wood and wooden sheet materials.

What material are the cutting edges made of?

The cutting edges are made from durable tungsten carbide (HW) for clean results and a long working life.

FESTOOL HW S8 D20/20 groove cutter - 490971

Name: FESTOOL HW S8 D20/20 groove cutter - 490971
Brand: FESTOOL
SKU: 02332128
Price: 59.2 EUR
Availability: PreOrder

Supplier number: FESTOOL 490971 | EAN 4014549000694

Recommended Retail Price €70.19

59.20 tax incl.

€48.92 excl. VAT (incl. all environmental contributions)

On order: delivered from 14/10/2026

blister

Ordered before 20:00 - delivered as of 14/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

✆ Talk to a specialist

Accurate routing with Festool

Practical benefits

Long-lasting carbide plunge cutting: With durable tungsten carbide blades, you achieve extended tool life even during direct plunge cuts into dense wood.
Clean and smooth finish: The balanced cutter geometry and rigid 8 mm shank ensure you create splinter-free grooves with complete stability.
Versatile for cabinet making: Featuring a 20 mm diameter and 20 mm cutting length, you easily mill precise rebates, fittings, and joinery slots.

In a nutshell

The right choise for

With the Festool hw S8 D20/20 groove cutter, you route clean, splinter-free grooves, rebates, and recesses in solid wood and sheet materials. Thanks to durable tungsten carbide cutting edges, you benefit from extended tool life even during direct plunge cuts. The rigid 8 mm shank ensures smooth, low-vibration operation in routers equipped with an 8 mm collet, giving you complete control over every pass. Featuring a 20 mm cutting diameter and a 20 mm working length, this bit makes it easy to create precise joinery and recesses for furniture fittings. Guide it with a parallel fence or guide rail to achieve immaculate results in the workshop and on-site.

Product information FAQ

€59.20

tax incl.

Key features according to our expert

Diameter: 20 mm
Cutting length: 20 mm
Shank size (milling cutter): 8 mm
Router bit type: Straight cutter
With bearing: No

Product description

Groove cutter

If you wish to achieve perfect cutting results with ease when drilling, grooving, rebating and long-hole routing, you are best advised to use the HW groove cutter. The cutter cuts precisely, makes drilling easier and has a long service life.

Long router bit service life even for plunge cutting because of the soldered standard tungsten carbide blade
An optimal cutter geometry, a stable cutter shaft and the proper sharpness ensure flawless surfaces

Ideally suited for

Grooves in furniture manufacturing
Routing fittings
Rebating of solid wood and panel material
Working with templates

All Features

Diameter: 20 mm
Cutting length: 20 mm
Shank size (milling cutter): 8 mm
Router bit type: Straight cutter
With bearing: No
D: 20.00 mm
Nl: 20.00 mm
Gl: 60.00 mm
S: 8 mm

Brand FESTOOL
02332128
EAN 4014549000694
Supplier number FESTOOL 490971

Frequently asked questions about this product

Answered by specialists

What is the shank diameter of this router bit?: This groove cutter has an 8 mm shank, suitable for routers equipped with an 8 mm collet.
What are the cutting dimensions of this bit?: It features a cutting diameter of 20 mm, a working cutting length of 20 mm, and a total length of 60 mm.
Does this groove cutter have a guide bearing?: No, this straight router bit does not have a ball bearing. Guide it using a parallel fence, rail, or template.
What applications is this router bit suitable for?: It is designed for routing grooves, rebates, and recesses in solid wood and wooden sheet materials.
What material are the cutting edges made of?: The cutting edges are made from durable tungsten carbide (HW) for clean results and a long working life.