STIHL RG-KM: The “Zero-Projectile” Revolution in Surface Weeding Forget everything you know about traditional string trimmers. The STIHL RG-KM Rotary Cutting Head is a specialized KombiTool designed for one mission: surgical weed removal on “high-risk” surfaces like gravel, asphalt, and paved kerbs. Unlike a spinning line that flings stones like bullets, the RG-KM uses a high-torque reciprocating twin-blade system—essentially a heavy-duty “scissor” action—that cuts vegetation without the high-velocity centrifugal force. This low-spin engineering allows you to work with total confidence just 5 meters from people and 3 meters from glass or cars, making it the primary choice for Irish municipal contractors, school caretakers, and property managers who need a chemical-free weed solution that won’t shatter a patio door or a parked car’s window. “Safe-Zone” Proximity Rating: The only tool in the range that officially allows for reduced safety distances ($5\text{m}$ for people vs the standard $15\text{m}$), allowing you to maintain busy car parks and public walkways without shutting down the entire area. 120° Rotatable “Triple-Life” Blades: The circular blades are designed so you can rotate them twice before they ever need sharpening. Since only the front 120-degree arc does the work, you effectively get three blades for the price of one. Anti-Clog Reciprocation: Because the blades move back and forth rather than spinning, they don’t “vacuum” or wrap long, stringy weeds or damp grass around the gearbox—a common failure point in traditional heads. Chemical-Free Surface Scouring: The heavy-duty steel blades are robust enough to be pressed directly into gravel or against tarmac to “scour” out weeds at the root, providing a mechanical alternative to expensive and restricted herbicides. Impact-Resistant Rider Plate: The underside features a heavy-duty protective dish that allows the tool to glide over hard surfaces, protecting the cutting gear and reducing the lifting effort for the operator. Universal Kombi-Lock System: Instantly swap your blower or hedge trimmer for the RG-KM on any professional KombiEngine (KM 91 R, 94 R, 111 R, 131 R, or the battery KMA 130 R/135 R).
