GS 461 ROCK BOSS®
Lightweight, easy to maneuver, fast-cutting concrete cutter for deep cutting and cutting corners.
When you need to cut deep into concrete, reach for the Boss – the STIHL GS 461 ROCK BOSS®. This revolutionary concrete cutter changes the game with enhanced performance that cuts up to 15.7” deep into concrete, reinforced concrete (with rebar up to ½ inch), cinder blocks, masonry bricks, asphalt and soft stone. And it does all of this in a compact, lightweight package that is easy to maneuver and transport.
It’s a great addition to your construction site when you need to get serious with concrete materials. And because it’s a STIHL, you know it delivers excellent performance. The GS 461 ROCK BOSS® features include a low exhaust emission engine, HD2 heavy-duty air filter, advanced water controls, low vibration, and our exclusive Diamond Abrasive Chain.
| GS 461 ROCK BOSS® Specifications - Professional Use | |
| POWER SOURCE | Gas |
| POWERHEAD WEIGHT | 16.8 lbs. |
| GUIDE BAR LENGTH (Recommended) | 16 in. |
| DIAMOND ABRASIVE CHAIN | 3/8" 36 GBM |
| ENGINE POWER | 5.8 bhp |
| FUEL CAPACITY | 26.4 oz. |
| DISPLACEMENT | 76.5 cc |
| Note: This product is for professional use only. Weight displayed is dry weight. The actual listed guide bar length can vary from the effective cutting length based on which powerhead it is installed on. | |
Important Information
WARNING! Improper use of any power tool may cause serious
or fatal injury. Read, understand and follow carefully the operating
and safety instructions in your instruction manual before using such products.
STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.
Model Features
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Anti-Vibration System
STIHL has developed a system for minimizing the vibration levels of handheld outdoor power equipment. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience. -
Bayonet-Style Filler Cap
Includes retainer for easy use, even with gloves on. -
STIHL ElastoStart™
The ElastoStart™ starter handle is a feature of STIHL. It is a starting grip with a built-in shock absorber that helps reduce the effort when pulling on the starter cord. The ElastoStart™ starter grip noticeably reduces the sudden peak forces (compression) normally felt during cranking. The forces which occur at the grip after the first compression stroke are smoothed out. -
Ergonomic Grip
The ergonomic top-handle bar design provides an optimal comfortable grip in any working position. -
Water Connection
Water connection with shut-off valve and quick connector. -
IntelliCarb™ Compensating Carburetor
The IntelliCarb™ Compensating Carburetor is designed to automatically adjust the air/fuel ratio when the air filter becomes restricted or partially clogged and maintains the engine’s correct RPM. IntelliCarb™ uses air from the clean side of the air filter to control the diaphragm and flow of fuel. As the air filter becomes dirty and less air is available for the carburetor, the IntelliCarb™ system adjusts the fuel flow to compensate for the decrease in air flow. This is in contrast to typical carburetors that utilize this air from the “dirty” side of the air box. -
Decompression Valve
The decompression valve reduces the compression in the combustion chamber during cranking and helps reduce the effort needed to pull the starter rope.
Standard Features
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Rubber Bumper
Rubber bumper in the front of the engine housing helps protect the unit in the cut. -
Upright Filter Cap
Designed for upright fueling. Keeps dust out. -
HD2 Filter System
Long-life heavy duty (HD2), pleated air filter and a secondary filter that are easy to get on and off. -
Decompression Valve
Helps reduce the effort needed to pull the starter rope.
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SPECIAL OFFER
36 GBM - General Purpose Diamond Abrasive Chain
The STIHL Diamond Abrasive Chain 36 GBM is the first of its kind ever offered by STIHL. This chain features a pre-sharpened diamond segment on each link, making it immediately ready for cutting concrete and stone. It’s designed to deliver high cutting speed, smooth cuts and good performance during plunge cuts. The diamond segments reduce vibration, improving overall cutting speed. A depth gauge between each diamond segment improves chain ruggedness and plunge cut performance. The chain also features a “sandwich” segment design for faster cutting and longer service life. Expected service life is approximately 40-80 linear feet of cutting in 6-inch thick concrete (chain life will vary greatly depending on aggregates and steel reinforcement). Available in 12 inch and 16 inch sizes.
Applications: This chain is to be used exclusively with the GS 461 STIHL ROCK BOSS® concrete cutter and the STIHL ROLLOMATIC® G guide bar. The chain is designed to cut concrete, reinforced concrete (with rebar up to ½ inch), cinder blocks and masonry (including bricks, asphalt and soft stone such as sandstone). Cutting hard stone such as granite and ductile iron pipe are also approved applications but will reduce the service life of the chain.
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STIHL ROLLOMATIC® G Guide Bar
Based on STIHL’s many years of experience designing guide bars and chains, the STIHL ROLLOMATIC® G is a guide bar that is designed for the professional application of concrete and stone cutting. The bar requires no bar oil – it uses water and features internal water channels that are directed toward the cutting area. This delivers optimal cooling and debris flushing of the chain and sprocket nose. The bar also features an additional tensioning hole to further increase chain tensioner travel. The expected service life of the STIHL ROLLOMATIC® G guide bar is equal to the service life to 2-3 STIHL Diamond Abrasive 36 GBM chains. Available in 12 inch and 16 inch sizes.
Applications: This guide bar is to be used exclusively with the GS 461 STIHL ROCK BOSS® concrete cutter and the STIHL Diamond Abrasive Chain 36 GBM; this guide bar is NOT to be used with any other STIHL products, including chainsaws. The bar is designed to cut concrete, reinforced concrete (with rebar up to ½ inch), cinder blocks and masonry (including bricks, asphalt and soft stone such as sandstone).
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For Your Safety
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Product Instruction Manual (PDF)
STIHL Limited Warranty
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