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‹ Alligator & Insulation Saws

18V · Brushless Festool ISC 240 EB-Basic 18V Brushless Insulation Saw (Body Only, T-LOC Systainer)

Alligator & Insulation Saws · Festool 18V

Festool ISC 240 EB-Basic 18V Brushless Insulation Saw (Body Only, T-LOC Systainer)

Name: Festool ISC 240 EB-Basic 18V Brushless Insulation Saw (Body Only, T-LOC Systainer)
Brand: Festool
SKU: 577231
Availability: InStock

1.8kg bare18V3 years all-inclusive (with registration)

Festool ISC 240: cordless insulation saw, cuts 240mm deep (350mm with the SG-350 cutting set), 26mm stroke, up to 3,000 strokes/min, 1.8kg bare. For mineral wool, natural fibre and PUR/PIR insulation.

Adds it to My Tools, kept on this device

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£479.95at Tooled Up · + £5.95 delivery

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240mm

Max cutting depth

26mm

Stroke length

3,000spm

Stroke rate

1.8kg

Weight (bare)

Full specs

From Festool's own documentation. Checked 15/10/2026. Report a spec error ›

Cutting

Saw typeInsulation saw

Max cutting depth240 mm

Other cutting depths350mm with the SG-350 cutting set

Rated to cutMineral wool and natural fibre insulation; PUR/PIR, polystyrene and dense mineral wool with the cross-set

Stroke length26 mm

Max stroke rate3,000 spm

Power & Motor

Voltage18V

MotorBrushless

Blades & Guides

Blades it takesFestool ISC cutting sets (SG-240, SG-350)

Blade changeTool-free

Guide railsFestool FS (guide rail slide in the box)

Physical & Build

Weight (bare)1.8 kg

Weight (with battery)2.4 kg

Case typeT-LOC Systainer

Case modelSystainer³ SYS3 M 237

Case included✓ Yes

Noise level89 dB(A) LpA / 97 dB(A) LwA

Vibration (cutting insulation)4.0 m/s²

Powered by Festool 18V · 5

All 5 batteries that fit this tool, smallest first. Kits and chargers ›

BP18Li3.0C 3.0Ah · 54Wh 0.4kg 2.2kg No retailer price yet About this battery ›

BP18Li4.0HPC 4.0Ah · 72Wh 0.6kg 2.4kg from £155.95at Tooled Up + £6.95 delivery View at Tooled Up ›

BP18TBX4 4.0Ah · 72Wh 0.6kg 2.4kg from £119.95at Tooled Up + £6.95 delivery View at Tooled Up ›

BP18Li5.0 5.0Ah · 90Wh 0.7kg 2.5kg from £172.95at Tooled Up + £6.95 delivery View at Tooled Up ›

BP18TBX8 8.0Ah · 144Wh 1.0kg 2.8kg from £199.95at Tooled Up + £6.95 delivery View at Tooled Up ›

Tool weight worked out by adding each pack's weight to the bare tool, using the makers' figures. The maker's own with-battery figure can differ slightly. We may earn a commission on retailer links.

Warranty · 3yr

Up to 3 years1 year as standard, 3 once you register it with Festool

Register in MyFestool within 100 days of purchase for 3 years of free repair, including wear parts such as carbon brushes, bearings and battery packs. Also covers theft replacement for 3 years (excess applies) and 10-year spare-part availability. Not available to dealers, hire companies or resellers. Consumables and accessories are excluded.

Warranty terms are set by the maker and can change. Always confirm current cover on their site before you buy.