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FESTOOL SC 3/8"-91 IH-57E ISO Hard Saw Chain for IS 330

Tags: Brand FESTOOL , FES769090 , SC 3/8"-91 IH-57E , ISO Hard , Saw Chain , Sword Saw Chain , 3/8 Inch Chain , IS 330 Accessory , ISP 330 Accessory , Rigid Insulation , PUR PIR Insulation , Polystyrene Insulation , Wood Fibre Insulation , Rock Wool , Glass Wool , Roof Insulation , Facade Insulation

Stock: In Stock
Model: FES769090 8265
Weight: 0.20kg
Dimensions: 85.00mm x 20.00mm x 120.00mm
SKU: FES769090
UPC: 4014549205853

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R 3,699.00

Ex VAT: R 3,216.52

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Festool SC 3/8"-91 IH-57E ISO Hard Saw Chain

At a Glance: Robust 3/8" ISO Hard chain for cutting extremely pressure-resistant insulation materials up to 330 mm thick.

The Festool SC 3/8"-91 IH-57E is a specialised ISO Hard saw chain developed for the Festool IS 330 and ISP 330 sword saws. Designed specifically for very hard and pressure-resistant insulation materials, it delivers dependable cutting performance in rigid wood-fibre insulation boards, PUR/PIR hard foam, polystyrene panels, hard rock wool and dense glass wool. The chain is suitable for materials with a bulk density exceeding 150 kg/m³ and supports cuts up to 330 mm deep when used with the compatible sword saw. Installation and tension adjustment are completed without tools through the machine&s integrated system, while the cutting teeth can be resharpened several times with a 4 mm round file. It is an excellent professional replacement chain for roof insulation, facade work and demanding renovation projects.

ISO Hard performance for dense insulation materials

Unlike a general-purpose chain, the SC 3/8"-91 IH-57E is engineered specifically for extremely pressure-resistant insulation. Its robust tooth profile and 30° cutting angle provide efficient material penetration while maintaining the accuracy required for professional insulation installation.

Product highlights

Purpose-built ISO Hard chain: Designed specifically for cutting exceptionally dense and pressure-resistant insulation materials.
3/8" chain pitch: Matches the approved Festool IS 330 and ISP 330 cutting system.
Up to 330 mm cutting capacity: Supports the full-depth insulation cutting capability of the compatible sword saw.
Tool-free installation: Fits into the sword saw without requiring separate installation tools.
Tool-free tensioning: Chain tension can be adjusted conveniently through the machine&s tensioning system.
Multiple resharpenings: The cutting teeth can be sharpened repeatedly using a 4 mm round file.
Professional insulation applications: Ideal for roofing, facade insulation and building renovation projects.

Features

ISO Hard chain design: Optimised for extremely firm and pressure-resistant insulating materials.
30° tooth angle: Provides the cutting geometry required for effective insulation processing.
3/8" chain pitch: Designed to match the compatible Festool guide bar and drive system.
Reusable cutting teeth: Can be resharpened several times using a suitable 4 mm round file.
Tool-free chain change: Allows fast replacement directly on the IS 330 or ISP 330 sword saw.
Tool-free tension adjustment: Makes correct chain setup quicker and more convenient.
Specialist insulation performance: Suitable for rigid materials with a bulk density above 150 kg/m³.

Benefits

Efficient cutting in dense materials: The specialist tooth design tackles insulation that is too firm for standard insulation-cutting accessories.
Reduced accessory downtime: Tool-free fitting and tension adjustment make chain changes and setup faster.
Extended usable life: Repeated resharpening restores cutting performance and maximises the value of the chain.
Accurate insulation preparation: The compatible Festool sword saw system supports controlled cuts in thick insulation boards.
Reliable system compatibility: Designed specifically for the Festool IS 330 and ISP 330 machines and their approved guide-bar system.

Application

Cutting pressure-resistant wood-fibre insulation boards.
Processing PUR and PIR rigid polyurethane foam panels.
Cutting polystyrene insulation boards.
Cutting hard rock wool and dense glass wool.
Preparing roof and above-rafter insulation.
Installing facade insulation systems.
Fitting thick insulation boards.
Roof renovation and building refurbishment.

Extra Information

Compatible exclusively with the specified Festool IS 330 and ISP 330 sword saw systems.
This ISO Hard chain is intended for dense insulation materials and is not a general-purpose timber-cutting chain.
Use only with the correct Festool guide bar, drive sprocket and approved chain-lubrication system.
The chain can be resharpened using a suitable 4 mm round file while maintaining the original tooth geometry.
Correct chain tension and adequate lubrication are essential for safe operation, clean cutting and maximum chain life.
Replace the chain if it is cracked, stretched beyond adjustment, damaged or unable to retain a suitable cutting edge.

Pro Tips

Check the chain tension before every cutting session and again after the chain has warmed during initial use.
Ensure that the chain lubrication reservoir contains the approved chain oil before starting work.
Allow the saw and chain to cut at a steady natural rate; excessive feed pressure creates heat and accelerates wear.
Sharpen all cutting teeth evenly to preserve balanced operation and straight cutting performance.
Clean compacted insulation fibres from the guide bar groove and chain area after use.
Use a Festool guide rail where appropriate to produce long, straight and accurately positioned cuts.
Store the cleaned and lightly lubricated chain in a dry container to protect the cutting teeth from corrosion and impact damage.

How to Use

Confirm that the material is suitable for the ISO Hard chain and that the chain is compatible with the saw and guide bar.
Disconnect the sword saw from its power source before installing, removing or adjusting the chain.
Inspect the guide bar, drive sprocket and chain for wear, damage or contamination.
Install the chain in the correct cutting direction around the guide bar and drive sprocket.
Use the saw&s tool-free mechanism to set the chain tension according to the machine instructions.
Fill or check the chain-lubrication system and confirm that oil reaches the chain correctly.
Secure the insulation material and mark or guide the required cutting line.
Start the saw away from the material and allow the chain to reach operating speed before beginning the cut.
Guide the saw smoothly through the material without twisting the guide bar or applying excessive pressure.
After use, disconnect the machine, allow the chain to cool and clean the chain and guide bar before storage.

Specifications

Description	Spec
Brand	Festool
Cat No.	FES769090
Product Type	Sword Saw Chain
Product Designation	SC 3/8"-91 IH-57E
Festool Order No.	769090
Chain Type	ISO Hard
Chain Pitch	3/8"
Tooth Angle	30°
Sharpening File	4 mm Round File
Maximum Material Thickness	330 mm
Material Density	Above 150 kg/m³
Installation	Tool-Free
Tension Adjustment	Tool-Free
Suitable Materials	Rigid Wood-Fibre Insulation, PUR/PIR, Polystyrene, Hard Rock Wool and Dense Glass Wool
Compatible Machines	IS 330 and ISP 330
Pack Quantity	1 Piece

Scope of Delivery:

1 x Festool SC 3/8"-91 IH-57E ISO Hard saw chain

Safety

Wear suitable eye, hearing, respiratory, hand and foot protection during cutting operations.
Disconnect the sword saw from its power source before fitting, adjusting, sharpening or cleaning the chain.
Inspect the chain, guide bar and drive sprocket before every use and do not operate worn or damaged components.
Ensure that the chain is installed in the correct direction and tensioned according to the saw instructions.
Never operate the chain without adequate approved chain lubrication.
Secure the workpiece and maintain a firm two-handed grip on the sword saw throughout the cut.
Keep hands, clothing, cables and bystanders away from the chain and projected cutting path.
Be alert to kickback, chain pinch and guide-bar deflection, particularly when beginning or completing a cut.
Insulation dust and fibres may be harmful; use effective extraction where supported and wear suitable respiratory protection.
Allow the chain to stop completely before placing the saw down or inspecting the cutting system.

FESTOOL SC 3/8"-91 IH-57E ISO Hard Saw Chain for IS 330