What are the main dimensions of this groove cutter?

This router bit has a 12 mm cutting diameter, a 30 mm working cutting length, and an 8 mm shank.

What is the benefit of reversible blades on this cutter?

When worn, you turn or replace the blade without resharpening. The cutting diameter remains identical, ideal for templates.

Which routers are compatible with this cutter?

It fits any router with an 8 mm collet, including Festool models like the OF 1010 and OF 1400.

Can this router bit plunge directly into material?

Yes, cutting on both the tip and the sides allows for direct plunging into solid wood and composite wood materials.

Does this groove cutter have a ball bearing guide?

No, this model has no ball bearing and is guided using a parallel fence, guide rail, or guide bush.

FESTOOL HW S8 D12/30 WP Z1 rotary cutter - 491080

Name: FESTOOL HW S8 D12/30 WP Z1 rotary cutter - 491080
Brand: FESTOOL
SKU: 02332178
Price: 126.8 EUR
Availability: PreOrder

Supplier number: FESTOOL 491080 | EAN 4014549075494

Recommended Retail Price €158.13

126.80 tax incl.

€104.79 excl. VAT (incl. all environmental contributions)

On order: delivered from 12/10/2026

blister

Ordered before 20:00 - delivered as of 12/10/2026
Free shipping
Delivery by DHL

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Consumables

FESTOOL HW-WP 30x5,5x1,1 spare blade (4 pcs) - 491388

Recommended Retail Price €79.90

69.40

€57.35 excl. VAT

Delivery time average 11 days.

Precision groove routing with Festool

Practical benefits

Constant cutting diameter: You maintain exact milling dimensions across every pass because the replaceable reversible blade never alters the diameter.
No resharpening downtime: Simply rotate or replace the carbide blade to continue routing immediately without sending tools out for sharpening.
Deep groove capacity: A generous 30 mm cutting length allows you to mill deep grooves and recesses in solid wood effortlessly.

In a nutshell

The right choise for

With the Festool reversible blade groove cutter hw S8 D12/30 wp Z1, you route deep and accurate grooves in solid wood and sheet materials with ease. The replaceable carbide insert knife ensures a constant 12 mm cutting diameter across every pass, making it ideal for template work and repetitive production routing. You never lose time on resharpening: simply rotate or replace the blade to get back to work immediately with maximum sharpness. Thanks to a 30 mm cutting length and direct plunge cutting capability, deep recesses are routed effortlessly. Its 8 mm shank fits routers such as the Festool of 1010 and of 1400.

Product information FAQ

€126.80

tax incl.

Key features according to our expert

Diameter: 12 mm
Cutting length: 30 mm
Shank size (milling cutter): 8 mm
Router bit type: Straight cutter
With bearing: No

Product description

Groove cutter with reversible blades

Carbide groove cutter with replaceable reversible blades, cuts both on the head and on the side. Ideal for deep grooves. Reversible blade routing tools have fundamental advantages compared with traditional tools, especially for intensive use: No resharpening, tool always ready to use and a diameter that remains constant.

Removable blades allow working with constant cutter dimensions and high precision - optimal when templates are used
No re-sharpening, can be used again immediately
The blade length of 25 mm also enables routing of deeper grooves

Ideally suited for

Routing templates
Grooves in wood and wood materials

All Features

Diameter: 12 mm
Cutting length: 30 mm
Shank size (milling cutter): 8 mm
Router bit type: Straight cutter
With bearing: No
D: 12.00 mm
Nl: 30.00 mm
Gl: 61.00 mm
S: 8 mm

Brand FESTOOL
02332178
EAN 4014549075494
Supplier number FESTOOL 491080

Frequently asked questions about this product

Answered by specialists

What are the main dimensions of this groove cutter?: This router bit has a 12 mm cutting diameter, a 30 mm working cutting length, and an 8 mm shank.
What is the benefit of reversible blades on this cutter?: When worn, you turn or replace the blade without resharpening. The cutting diameter remains identical, ideal for templates.
Which routers are compatible with this cutter?: It fits any router with an 8 mm collet, including Festool models like the OF 1010 and OF 1400.
Can this router bit plunge directly into material?: Yes, cutting on both the tip and the sides allows for direct plunging into solid wood and composite wood materials.
Does this groove cutter have a ball bearing guide?: No, this model has no ball bearing and is guided using a parallel fence, guide rail, or guide bush.