We have not reinvented cross-cutting – but we have made it easier and more portable. And with the new KSS 40 18M bl, we have even added a battery: one that delivers what it promises – innovative battery technology for maximum performance.

When it comes to internal finishing work, there is no better helper than the KSS 40 18M bl, whatever the task in hand: be it for floors, walls, doors, furniture, ceilings or roof battens – to make cross or rip cuts, rail-guided cuts, miter or compound miter cuts at angles up to 45°, or even plunge cuts.

MAFELL’s name stands for maximum, built-in functionality. This is clearly apparent on the KSS 40 18M bl, with its numerous, intelligent functions that make working even easier and more convenient.

Anyone using a MAFELL cross-cutting system quickly finds their day-to-day work unimaginable without the KSS. It’s a tool that will not only transform your work, but also change you. See for yourself, and follow your instinct.


KSS 40 18M bl
18V, 94Wh, Li-Ion
Nominal no-load speed
6.700 l/min
Cutting depth with guide rail at 90°
0-40 mm
Cutting depth without guide rail at 90°
0-42 mm
Cutting depth with guide rail at 45°
0-27 mm
Tilting range
Angle cuts
-60° bis +45°
Weight with cross-cutting rail*
3.65 kg
Weight without cross-cutting rail*
2.8 kg

*including battery


Ref. No.
Delivery specification
  • Cordless cross-cutting system KSS 40 18M bl
  • Flexi-Guide rail FX 140
  • 2 clamping claws
  • Parallel guide fence
  • Chip bag
  • Hose connector
  • Allen key
  • TCT sawblade 120 x 1.2/1.8 x 20 mm, ATB, 24 teeth, for universal use with wood
  • 2 battery PowerTanks 18 M 94
  • 1 battery PowerStation APS 18 M in the new MAFELL T-MAX case.

The high-performance KSS 40 18M bl takes the KSS 300 to the next development level with state-of-the-art battery technology. The machine stands out thanks to its impressive performance and the attractive range of accessories included.


TCT sawblade

Dimensions Ref. No.
120 x 1.2/1.8 x 20 mm ATB, 12 teeth for ripping in wood 092560

TCT sawblade

Dimensions Ref. No.
120 x 1.2/1.8 x 20 mm ATB, 24 teeth for universal use with wood 092558

TCT sawblade

Dimensions Ref. No.
120 x 1.2/1.8 x 20 mm TCG, 40 teeth for fine sawing in wood 092559

TCT sawblade

Dimensions Ref. No.
120 x 1.2/1.8 x 20 mm, 40 teeth, trapezoidal for laminated boards 092578

Battery PowerStation

Description Ref. No.
APS 18 M, 18 V 094453

Battery PowerTank

Description Ref. No.
Li-Ion, 18 V, 94 Wh 094436