Which machines are compatible with this saw chain?

This saw chain is designed for the Festool IS 330 and ISP 330 sword saws.

Which materials can you cut with this saw chain?

It is designed for flexible and pressure-resistant insulating materials such as wood fibre, PUR/PIR, polystyrene, rock wool, and glass wool.

What are the pitch and drive link specifications?

The saw chain has a 3/8" pitch and consists of 57 drive links.

How is the chain mounted and tensioned?

Fitting the chain and adjusting its tension are both completely tool-free.

Can this saw chain be resharpened?

Yes, you can resharpen the chain multiple times using a 4.5 mm round file.

FESTOOL SC 3/8"-91 I-57E saw chain - 769088

Name: FESTOOL SC 3/8"-91 I-57E saw chain - 769088
Brand: FESTOOL
SKU: 02632118
Price: 111.4 EUR
Availability: PreOrder

Supplier number: FESTOOL 769088 | EAN 4014549205839

Recommended Retail Price €148.61

111.40 tax incl.

€92.07 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 €6.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

✆ Talk to a specialist

Clean cutting through dense insulation

Practical benefits

Festool saw chain performance: You cut pressure-resistant wood fibre boards, PUR, PIR, and polystyrene cleanly and with minimal effort.
Fast tool-free chain assembly: You mount and adjust the chain tension on the sword saw without needing extra tools.
Multiple resharpening options: You can easily resharpen the teeth multiple times using a standard 4.5 mm round file.

In a nutshell

The right choise for

With the Festool saw chain sc 3/8"-91 I-57E, you cut flexible and pressure-resistant insulation materials cleanly and precisely. Whether you are working with wood fibre boards, PUR, PIR, polystyrene, or mineral wool up to 330 mm, this chain prevents fraying and jamming during demanding roof and façade insulation projects. You fit and tension the chain completely tool-free on your Festool is 330 or isp 330 sword saw, keeping downtime to a minimum. Additionally, you can easily resharpen the teeth multiple times on site using a standard 4.5 mm round file to maintain optimal cutting performance.

Product information FAQ

€111.40

tax incl.

Key features according to our expert

Pitch: 3/8 inch

Product description

Cut insulating materials with ease.

This chain for the sword saw is specially designed to cut insulating materials.

Simple tool-free assembly in the sword saw
Chain tension can be adjusted without using tools
Can be resharpened multiple times with a 4.5 mm round file
Cutting pressure-resistant insulating materials up to a bulk density of 150 kg/m³

Ideally suited for

Cutting pressure-resistant fibreboards for flat roof insulation
Cutting PUR/PIR (polyurethane hard foam) and polystyrene insulating boards as well as hard rock wool and glass wool up to 330 mm
Laying insulation boards
Facade insulation
Roof renovation
For IS 330, ISP 330

All Features

Pitch: 3/8 inch
Tooth angle: 30.00 °

Brand FESTOOL
02632118
EAN 4014549205839
Supplier number FESTOOL 769088

Frequently asked questions about this product

Answered by specialists

Which machines are compatible with this saw chain?: This saw chain is designed for the Festool IS 330 and ISP 330 sword saws.
Which materials can you cut with this saw chain?: It is designed for flexible and pressure-resistant insulating materials such as wood fibre, PUR/PIR, polystyrene, rock wool, and glass wool.
What are the pitch and drive link specifications?: The saw chain has a 3/8" pitch and consists of 57 drive links.
How is the chain mounted and tensioned?: Fitting the chain and adjusting its tension are both completely tool-free.
Can this saw chain be resharpened?: Yes, you can resharpen the chain multiple times using a 4.5 mm round file.