Stihl GS 461 w/ 18" GGM Ductile Iron Diamond Bar/Chain

When municipal utility repairs and deep-trench pipeline operations demand absolute precision, the STIHL GS 461 ROCK BOSS® with 18" Ductile Iron Setup is the ultimate solution. This specialized configuration takes the legendary 5.8 HP GS 461 powerhead and equips it with an extended 18-inch Rollomatic® G guide bar and the STIHL 36 GGM Ductile Iron Diamond Chain. Purpose-built for underground infrastructure crews, this setup allows operators to easily plunge-cut and cleanly sever thick ductile cast iron pipes directly in the trench without the massive excavation required to fit a traditional circular cut-off saw.

The secret to this tool's specialized performance lies in its cutting chain. The 36 GGM chain features exceptionally hard vacuum-brazed diamond segments and reinforced drive links specifically engineered to withstand the brutal, high-load conditions of cutting cast iron pipe. Supported by the machine's integrated on-board water management system, water is continuously routed through the guide bar directly into the cut. This wet-cutting requirement cools the premium diamond segments, lubricates the chain, and binds potentially hazardous dust to keep your jobsite OSHA compliant.

Elite Engineering & Durability: Working in confined trenches exposes tools to severe conditions. The ROCK BOSS® is protected by a long-life HD2 air filtration system with a washable polyethylene element that blocks fine particulates from choking the engine. Furthermore, it utilizes a commercial-grade anti-vibration system that isolates high-torque cutting forces away from the operator's hands, reducing fatigue during demanding, multi-hour pipe repair operations. Starting the high-compression engine in a tight space is also made effortless via the built-in decompression valve and ElastoStart™ shock-absorbing handle.

Please Note: (1) Heavy-duty 18-inch Rollomatic® G Guide Bar and (1) Premium 36 GGM Ductile Iron Diamond Chain are included. This chain is designed strictly for wet-cutting ductile iron pipe and should not be used for standard concrete, masonry, or wood.

Key Features & Benefits

• Purpose-Built for Ductile Iron: Specialized GGM 36 chain utilizes vacuum-brazed diamond segments and reinforced links to cleanly cut cast iron utility pipes.
• Extended 18-Inch Reach: The longer bar profile allows operators to sever large-diameter pipes from a single side, minimizing trench excavation size.
• Exceptional Plunge-Cut Capability: Operates exactly like a chainsaw, allowing crews to safely and accurately plunge-cut directly into compromised pipe sections without kickback or circular blade binding.
• Integrated Water Dust Suppression: Features a quick-connect water valve that feeds fluid internally through the guide bar to cool the chain and eliminate airborne dust.
• Heavy-Duty HD2 Filter System: Radial pore filter design traps fine jobsite dust before it reaches the combustion chamber, ensuring consistent 5.8 HP output.
• Professional Anti-Vibration Layout: Strategically positioned rubber and spring dampeners separate the engine's extreme torque from the handles, granting smooth control.
• Effortless Trench Starting: The integrated decompression valve safely bleeds cylinder pressure, requiring significantly less pulling force to start the machine in awkward positions.

Technical Specifications & Infrastructure Benchmarks