Mafell MT 55-18 cordless plunge saw in the MAX3 – Generation 2026

The MT 55-18 is a cordless plunge-cut saw for on-site panel cutting, without the need for a power outlet: shortening kitchen worktops, plunge-cutting sink openings, shortening door leaves, and sizing panels along the guide rail. It offers a cutting depth of 56.5 mm without the guide rail, and 45.1 mm at 45°. The saw has a swivel range of -1° to 48° and weighs 4.5 kg without the battery. In addition to wood and engineered wood products, it can cut OSB, cement fiberboard, gypsum fiberboard, Trespa, facade panels, and plastics – each material can be cut with the appropriate speed and blade from the KSB range.

The case contains everything you need to get started: two PowerTanks 18 M 99, the APS M+ charging station and the saw blade for fine cutting.

For a tear-out-free visible edge, you saw twice: first the scoring cut, 3 mm deep, then the through cut. The blade is automatically offset by 0.1 mm. Scoring is activated with a single movement. You control the speed continuously from 2,660 to 5,930 min⁻¹. The cutting depth indicator can be turned to "with rail" and "without rail"; the displayed depth is correct in both cases.

What has changed compared to the MT 55 18M bl

• Adjustable speed: 2,660 to 5,930 rpm. The predecessor ran at a fixed speed.
• Edge distance 8 mm: Cuts close to the edge, up to 8 mm from the wall (shadow gap 10 mm). This makes it suitable even for narrow baseboards.
• Cutting depth at 45°: 45.1 mm instead of 40.5 mm, thanks to the new swiveling system.
• The guard has a wider opening angle: it opens further for blade changes, exposing the blade. As long as it is open, the safety lock and saw blade locking mechanism are active.
• Standard blade: KSB-WF162 GT with grouped teeth instead of Z 48.
• MAX3 case instead of T-MAX. The two stack on each other.

Here's how to use it

• Shortening a kitchen worktop: Place the F 160 guide rail , score, and cut. The included KSB-WF162 GT with 49 teeth finishes the edge.
• Cutting out sections: sink, hob, access panel. The kickback stop F-RS is located behind the machine in the rail, the position indicator MT-PA shows where the blade exits the material.
• Along the wall: Position the machine directly, set the cutting depth, and saw. Edge distance 8 mm, shadow gap 10 mm.
• Bevel cuts and miters: The angle setting is clamped at two points with a half turn of a screw.
• On third-party rails: The plunge circular saw can be adapted to other rail systems via the second guide groove in the base plate.
• Batteries: 18V LiHD with 99 watt-hours from the Cordless Alliance System (CAS). All Mafell 18-volt tools use the same battery packs, and they are compatible with any CAS tool from other brands.
• Dust extraction: 35 mm connection; the S 35 M fits there. The reason why dust class M is recommended for wood dust is explained in the article on wood dust extraction.

Does this fit in your workshop?

Purchased individually, the saw, two PowerTanks, and the APS M+ cost €1,297.20 net. The set costs €1,087.00. If CAS batteries are already in use, the MT 55-18 PURE can be used without a battery and charger. For those who work near a power outlet, the corded MT 55 is more economical. Its maximum material thickness is 56.5 mm; thicker material can be handled by the K 65 (up to 67 mm), which uses the same guide rail but cannot plunge into the workpiece.

Downloads

Operating instructions MT 55-18 (PDF, Mafell)
Brochure for plunge saws MT 55 and MT 55-18 (PDF, 14 pages, Mafell)
Product information MT 55-18 (Mafell)

All the details

Technical Specifications
Cutting depth: 0 to 56.5 mm
Cutting depth at 45°: 0 to 45.1 mm
Swivel range: –1° to +48°
Rated no-load speed: 2,660 to 5,930 min⁻¹
Rated voltage: 18 V
Battery: 18 V, 99 Wh, LiHD (Cordless Alliance System)
Saw blade: Ø 162 x 1.8 x 20 mm
Dust extraction port Ø: 35 mm
Weight without battery: 4.5 kg

Applications
Cutting Types: Cross cuts and rip cuts, bevel cuts –1 to +48°, plunge cuts
Edge Cutting: Up to 8 mm from the wall, 10 mm shadow gap
Scoring: Cutting depth limited to 3 mm, cut automatically offset by 0.1 mm
Cutting depth adjustment: accurate to the millimeter, fine scale 0.1 mm, display with and without guide rail
Saw blade change: hinged protective cover; start lock and saw blade lock remain active during change
Third-party guide rails: second guide groove in the base plate, adjustable guide jaws
Materials: solid wood, cement fiber boards, Trespa, OSB, gypsum fiber boards, plastic, facade panels, panel materials

Accessories
Guide rails: F 80 (204380), F 110 (204381), F 160 (204365), F 210 (204382), F 310 (204383)
Guide Rail Connectors: F-VS connector (204363), F-EK end caps (205400)
Guide Rail Accessories: F-HP 6.8M adhesive profile (204376), F-SS 3.4M splinter guard (204375), F-SZC 180 clamp (093868)
Bags and Sets: Guide Rail Bag TZ-FST1600 (095257), Set of 2 x F 160 (209591), Set of F 80 + F 160 (209592)
Stops: Angle Stop F-WA (205357), Parallel Stop (203214), Underside Stop MF-UA (206073), Position Indicator MT-PA (205398), Kickback Stop F-RS (202867)
Dust Extraction: Aerofix F-AF 1 Suction and Clamping System (204770), FXS-L Flexible Hose (205276), Chip Bag (206921)
Saw blades: KSB-WF162 GT fine cut (092604), KSB-WU160 GT universal (092602), KSB-WL160 GT rip cut (092601), KSB-AL160 aluminum and plastic (092605), KSB-L160 for laminate and HPL (092606), KSB-AM160 DT for abrasive materials (092608), diamond (092474)
Batteries and chargers: PowerTank 18 M 99 LiHD (094503), PowerTank 18 M 144 LiHD (094498), PowerTank 18 M 144 LiHDX (094520), PowerStation APS M (094492), PowerStation APS M+ (094509)
Power Sets: Set 2 with 2 x 18 M 99 and APS M (209599), Set 3 with 2 x 18 M 144 and APS M+ (209598), Set 4 with 2 x 18 M 144 LiHDX and APS M+ (212615), Set 5 with 4 x 18 M 99 and 2 x APS M+ in the MAX3 (209633)
Storage: MAX3 case, Tool Tray C115-TT insert (095305)

Product data
Origin: Made in Germany