Which tools are compatible with this groove unit?

This conversion kit is designed exclusively for the Festool HK 85 circular saw.

What groove dimensions can you achieve with this set?

You can adjust the cutting width from 16 to 25 mm and the routing depth from 0 to 35 mm.

What is included in the scope of delivery?

It includes the groove cutter, reversible blades, fixed and moving guards, flanges, spacers, a wrench, and a Systainer SYS3 M 137.

What is the diameter of the dust extraction port?

The groove unit features a dust extraction connection with a diameter of 36 mm.

What are the main applications for this accessory?

It converts your HK 85 into a router for cutting transverse and longitudinal grooves in timber.

FESTOOL VN-HK85 130X16-25 groove chisel for HK 85 - 576803

Name: FESTOOL VN-HK85 130X16-25 groove chisel for HK 85 - 576803
Brand: FESTOOL
SKU: 03162865
Price: 715.8 EUR
Availability: PreOrder

Supplier number: FESTOOL 576803 | EAN 4014549381380

Recommended Retail Price €820.33

715.80 tax incl.

€591.57 excl. VAT (incl. all environmental contributions)

On order: delivered from 14/10/2026

Ordered before 20:00 - delivered as of 14/10/2026
Free shipping
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Consumables

FESTOOL HW-WP 14x14x2/12 spare blade (12 pcs) - 574671

Recommended Retail Price €101.66

83.40

€68.92 excl. VAT

Delivery time average 11 days.

Versatile groove cutting conversion kit

Practical benefits

Quick conversion with Festool: You effortlessly transform your circular saw into a capable groove cutter for transverse and longitudinal joints.
Flexible depth and width: Adjust your groove width from 16 mm to 25 mm and route depths up to 35 mm.
Clean and tear-free routing: Reversible carbide blades and pre-cutters deliver smooth surface quality and rapid progress in solid wood.

In a nutshell

The right choise for

With the Festool VN-HK85 130X16-25, you quickly convert your hk 85 circular saw into a capable groove cutter. Cut clean transverse and longitudinal grooves for timber joints and notches directly on the jobsite without needing extra stationary machinery. Easily adjust your cutting width from 16 mm to 25 mm and set routing depths up to 35 mm for complete accuracy. Reversible carbide blades and pre-cutters ensure smooth, tear-free results across solid timber. The 36 mm dust extraction port keeps your work area clear and clean. This complete conversion kit comes with fixed and moving guards, a wrench, and a Systainer SYS3 M 137.

Product information FAQ

€715.80

tax incl.

Key features according to our expert

Accessory/Part type: Chisel setting jig

Scope of delivery

Adjustable groove cutter diameter 130 x 16-25 mm
Protective cover (fixed)
Protective cover (moveable)
Key
Systainer SYS3 M 137

Product description

From portable circular saw to groove router.

With the groove unit conversion kit, the versatile HK 85 becomes a groove router for transverse and longitudinal grooves, making it a real all-rounder. For grooves with a width of 16 mm to 25 mm and a depth of up to 35 mm.

Easy-to-install groove unit
Reversible carbide cutting blades and pre-cutting blades for a high surface quality and rapid working progress
Spacer rings enable the required groove widths to be set
Routing edge corresponds to the cutting edge
Extractable via integrated extractor connector (dia. 36 mm)

Ideally suited for

Can be used in hard or soft wood
Routing a groove in rafters
Creating cable ducts
Routing a groove in brackets
Creating all types of notch
Staircase construction
Furniture manufacture
For HK 85

All Features

Accessory/part type: Chisel setting jig
Dust extraction connection diameter: 36 mm
Transport weight incl. accessories: 3.0 kg
Product weight without accessories: 0.90 kg

Brand FESTOOL
03162865
EAN 4014549381380
Supplier number FESTOOL 576803

Frequently asked questions about this product

Answered by specialists

Which tools are compatible with this groove unit?: This conversion kit is designed exclusively for the Festool HK 85 circular saw.
What groove dimensions can you achieve with this set?: You can adjust the cutting width from 16 to 25 mm and the routing depth from 0 to 35 mm.
What is included in the scope of delivery?: It includes the groove cutter, reversible blades, fixed and moving guards, flanges, spacers, a wrench, and a Systainer SYS3 M 137.
What is the diameter of the dust extraction port?: The groove unit features a dust extraction connection with a diameter of 36 mm.
What are the main applications for this accessory?: It converts your HK 85 into a router for cutting transverse and longitudinal grooves in timber.