Keep hard-to-reach hedges looking good with the STIHL HL 91 K (0°) extended reach hedge trimmer. Built for professional use, this mid-length hedge trimmer is lightweight and features a fixed-angle, 24" cutting blade. Easy to operate, the HL 91 K (0°) features a powerful, fuel-efficient, low-emission engine. Its compact design provides excellent maneuverability and includes an innovative ergonomic rubberized control handle with ECOSPEED throttle control, allowing for variable speed regulation. This convenient tool is designed to help professionals work longer with reduced fatigue.
- POWER SOURCEGas
- WEIGHT11.9
- BLADE LENGTH24
- CUTTING ATTACHMENT24"/ 0° head
Features
Reduced-Emission Engine Technology - Caring for Nature
The STIHL Inc. “Caring for Nature” seal identifies its powered products that are more environmentally conscious, producing zero or low exhaust emissions. STIHL Inc. defines “low exhaust emissions” as being cleaner than EPA and/or CARB exhaust emission standards.
Multi-Function Control Handle
Having easy access to all of the controls on one comfortable handle helps makes it easier to complete tasks so the operator’s hand never has to leave the handle.
Double-Sided Blades
The dual-ground blade system provides a clean cut and is ideal for cutting through stronger, thicker branches.
Made in America
A majority of STIHL products sold in America are made in America of U.S. and global materials.
Specifications
POWER SOURCE | Gas |
WEIGHT | 11.9 lbs. |
BLADE LENGTH | 24 in. |
CUTTING ATTACHMENT | 24"/ 0° head |
SHAFT LENGTH | 30 |
OVERALL LENGTH | 66 in. |
ENGINE POWER | 1.2 bhp |
FUEL CAPACITY | 18.3 oz. |
DISPLACEMENT | 24.1 cc |
Note: Weight displayed is dry weight.
Warnings and Safety
Note: STIHL engine products with the Caring for Nature logo are cleaner than EPA Standards for exhaust emissions.
Note: STIHL recommends use of fuel with no more than 10% Ethanol content. Using fuel with greater than 10% Ethanol content may cause damage to your equipment and may void your STIHL warranty.
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.
STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.
SERVICE AND TIPS
Related Products

Hedge Trimmer Blade Cleaner
A high-quality cleaner that maintains performance and extends blade life.

No-Spill® Fuel Containers
No-Spill® fuel containers assure that gasoline doesn’t go anywhere except into your tank.

HP Ultra 2-Cycle Engine Oil
This fully synthetic 2-cycle engine oil is specially suited for high performance chainsaws and power tools.

STIHL MotoMix®
Only from STIHL—This patented 50:1 fuel mixture combines non-ethanol, high-octane fuel, and premium STIHL HP Ultra Oil.
Related Safety Products

Pro Mark™ Helmet System
This helmet system is our recommended protection for professionals.

STIHL Pro Mark™ Hearing Protectors
Our most noise-reducing hearing protectors.

Black Widow Glasses
These protective glasses feature wider lenses for wrap-around protection.

Great Grip Gloves
Great Grip Gloves are designed for superior grip and overall value.
Questions & Answers
Reviews