What is the Festool SR 400/5 reciprocating saw blade used for?

It is designed for precise cutting of insulating materials, cardboard, pipe insulation, and soft fibreboards.

Which reciprocating saws are compatible with this blade?

Thanks to the universal S-shank mount, it fits all reciprocating saws with a standard 1/2" shank interface.

What are the dimensions and tooth pitch of this blade?

The blade has a total length of 400 mm, a thickness of 1.5 mm, and a tooth pitch of 5 TPI (5 mm).

Can this saw blade be used for plunge cuts?

Yes, its specially shaped cutting tip allows for easy plunge cuts directly into insulation materials.

Why does this blade feature a wide body?

The wide blade back provides maximum stability to ensure straight, accurate cuts through thick insulation.

FESTOOL SR 400/5 reciprocating saw blade building materials insulation - 577491

Name: FESTOOL SR 400/5 reciprocating saw blade building materials insulation - 577491
Brand: FESTOOL
SKU: 08093862
Price: 40.4 EUR
Availability: PreOrder

Supplier number: FESTOOL 577491 | EAN 4014549412817

Recommended Retail Price €53.93

40.40 tax incl.

€33.39 excl. VAT (incl. all environmental contributions)

On order: delivered from 28/10/2026

Ordered before 20:00 - delivered as of 28/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

✆ Talk to a specialist

Effortless insulation cutting with Festool

Practical benefits

Deep cuts through insulation: With a 400 mm length, you easily cut through thick insulation packs and soft plastics.
Straight and stable cuts: The wide blade back prevents deviation, ensuring you achieve clean and perfectly straight cuts.
Fast and universal fit: The universal S-shank mount lets you quickly swap blades across compatible reciprocating saws.

In a nutshell

The right choise for

With the Festool sr 400/5 reciprocating saw blade, you cut through thick insulation, wood fibreboards, and soft plastics quickly and accurately. Its 400 mm length allows you to slice through deep insulation packs in a single, smooth pass. The 1.5 mm thick blade with a wide body delivers dependable stability, preventing blade deviation so your cuts stay straight and clean. Featuring a 5 tpi pitch and a specially ground tip, it lets you make neat plunge cuts directly into insulation without tearing the material. Thanks to the universal S-shank mount, you can easily attach it to all reciprocating saws with a standard 1/2-inch interface.

Product information FAQ

€40.40

tax incl.

Key features according to our expert

Length: 400 mm
For material: Insulation material
Teeth per inch: 5
Thickness: 1,5 mm

Product description

Cut insulating materials with ease.

The extra-long insulating material saw blade made of HCS tool steel is suitable for cutting a wide variety of insulating materials and cardboard.

Extra-long blade for cuts in thick bundles of insulating material
Serrated for cutting insulating materials
Wide saw-blade back for straight cuts
HCS tool steel for a long service life
Knife edge suitable for plunge-cutting
The right saw blade can be found quickly with Festool's colour-coding: The colour green stands for machining construction materials
The universal shank makes it easy to change the saw blade quickly on all reciprocating saws with an S-shank mount

Ideally suited for

Ideal for precise cutting in insulating materials
For straight and angular cuts
For plunge cuts in insulating material
For sawing softer plastics or fibreboard made of wood
For tube insulation and cutting cardboard
For RSC 18

All Features

Length: 400 mm
For material: Insulation material
Teeth per inch: 5
Thickness: 1,5 mm
Pitch: 5.00 mm
Width: 45.00 mm
Length of cutting blade: 350.00 mm

Brand FESTOOL
08093862
EAN 4014549412817
Supplier number FESTOOL 577491

Frequently asked questions about this product

Answered by specialists

What is the Festool SR 400/5 reciprocating saw blade used for?: It is designed for precise cutting of insulating materials, cardboard, pipe insulation, and soft fibreboards.
Which reciprocating saws are compatible with this blade?: Thanks to the universal S-shank mount, it fits all reciprocating saws with a standard 1/2" shank interface.
What are the dimensions and tooth pitch of this blade?: The blade has a total length of 400 mm, a thickness of 1.5 mm, and a tooth pitch of 5 TPI (5 mm).
Can this saw blade be used for plunge cuts?: Yes, its specially shaped cutting tip allows for easy plunge cuts directly into insulation materials.
Why does this blade feature a wide body?: The wide blade back provides maximum stability to ensure straight, accurate cuts through thick insulation.