What are the dimensions of this spiral groove cutter?

The cutter has a 4 mm diameter, a 10 mm cutting length, and a total length of 45 mm.

What is the shank diameter of this router bit?

It features an 8 mm shank, making it compatible with all routers with an 8 mm collet.

Which materials can be machined with this carbide bit?

Made of solid carbide (HW), it is ideal for routing panel materials and hardwoods.

What is the advantage of the spiral flute design?

The spiral draws wood chips upward, ensuring smooth running and optimal dust extraction.

Does this cutter include a guide bearing?

No, it does not have a ball bearing and is guided using a parallel fence or guide rail.

FESTOOL HW Spi S8 D4/10 spiral groove cutter - 490977

Name: FESTOOL HW Spi S8 D4/10 spiral groove cutter - 490977
Brand: FESTOOL
SKU: 02332174
Price: 60.95 EUR
Availability: PreOrder

Supplier number: FESTOOL 490977 | EAN 4014549000779

Recommended Retail Price €75.10

60.95 tax incl.

€50.37 excl. VAT (incl. all environmental contributions)

On order: delivered from 12/10/2026

blister

Ordered before 20:00 - delivered as of 12/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

✆ Talk to a specialist

Clean and precise grooves with Festool

Practical benefits

Direct upward chip extraction: The spiral flute guides chips directly upwards so you keep a clear line of sight and achieve optimal dust extraction.
Smooth pulling cut action: The cutting geometry lowers cutting pressure, ensuring you create tear-free, smooth grooves in hardwoods and sheet materials.
Durable solid carbide build: Engineered from solid carbide, this cutter delivers excellent wear resistance and consistent performance across daily routing tasks.

In a nutshell

The right choise for

With the Festool hw spi S8 D4/10 spiral groove cutter, you route precise and tear-free grooves in solid wood and sheet materials. Its spiral flute design carries chips directly upwards, keeping your cutting path clear and enabling optimal dust extraction. The pulling cut geometry reduces cutting pressure, delivering smooth operation and clean results on every pass. Made from wear-resistant solid carbide with a 4 mm diameter, a 10 mm cutting length, and an 8 mm shank, this cutter provides long-lasting reliability for demanding cabinetry and interior fitting projects.

Product information FAQ

€60.95

tax incl.

Key features according to our expert

Diameter: 4 mm
Cutting length: 10 mm
Shank size (milling cutter): 8 mm
Router bit type: Straight cutter
With bearing: No

Product description

Spiral groove cutter

Thanks to the solid carbide, the cutter can be used for a multitude of materials. Spiral groove cutters are outstandingly suited to creating grooves or routing cut-outs with templates.

The drawing cut of the cutter generates less cutting pressure, thus creating clean routing results
Due to the spiral shape, the chips are transported upwards and can be perfectly extracted there

Ideally suited for

Particularly smooth running spiral groove cutters, in HW steel optimally suited for panel materials and hardwood applications
Because of the spiral shape of the cutter blade, cutter chips are drawn directly upwards and optimally extracted

All Features

Diameter: 4 mm
Cutting length: 10 mm
Shank size (milling cutter): 8 mm
Router bit type: Straight cutter
With bearing: No
D: 4.00 mm
Nl: 10.00 mm
Gl: 45.00 mm
S: 8 mm

Brand FESTOOL
02332174
EAN 4014549000779
Supplier number FESTOOL 490977

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this spiral groove cutter?: The cutter has a 4 mm diameter, a 10 mm cutting length, and a total length of 45 mm.
What is the shank diameter of this router bit?: It features an 8 mm shank, making it compatible with all routers with an 8 mm collet.
Which materials can be machined with this carbide bit?: Made of solid carbide (HW), it is ideal for routing panel materials and hardwoods.
What is the advantage of the spiral flute design?: The spiral draws wood chips upward, ensuring smooth running and optimal dust extraction.
Does this cutter include a guide bearing?: No, it does not have a ball bearing and is guided using a parallel fence or guide rail.