While most “nylon head” descriptions focus on simple grass trimming, the STIHL MB-KM Brushcutter Attachment is a unique hybrid engineered for the transition from manicured lawn to unruly meadow. Unlike the standard FS-KM (which is strictly a trimmer), the MB-KM is a heavy-duty specialist designed to bridge the gap between a line head and a metal blade. It features a reinforced gearbox and a specialized GSB 230-2 deflector that allows it to handle the higher-torque demands of cutting through dense, matted reeds and thick, dry stalks. If you’re tackling an Irish garden that hasn’t seen a mower in six months, the MB-KM offers the high-velocity “impact cut” needed to reclaim your property without the risk of gearbox burnout common in lighter attachments. It’s the ultimate “first-pass” tool that prepares a rough site for final finishing, turning a jungle into a lawn in a single battery charge.
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High-Torque “Reed-Ready” Gearbox: Specifically ratios to maintain maximum blade/line momentum when hitting resistant, woody vegetation, preventing the “stalling” effect often felt with standard trimmer attachments.
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Synchronized 230mm Cutting Diameter: Perfectly calibrated to match the power curve of both petrol and battery KombiEngines, ensuring you get the widest possible cut without overworking the motor.
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Oversized Debris Shield: Features a wider, more robust guard than the FS-KM, designed to deflect the heavier projectiles (like small stones or wood chips) encountered when clearing overgrown “wild” areas.
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Industrial Anti-Wrap Design: The head mounting is recessed to prevent long, tough grass from wrapping around the drive shaft—a common frustration that stops work and overheats the engine in thick Irish meadows.
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Precision Weighting (1.2 kg): Engineered with a hollow-core straight shaft to keep the center of gravity at the coupling, making it significantly more maneuverable for “swing-cutting” across wide areas.








