HS 45


18 in. Blade

This hedge trimmer is lightweight and easy to use, ideal for trimming around the home.

Designed for homeowner use, the HS 45 is available with 18" dual-reciprocating, double-sided blades with integrated cutter guard. High-torque engine adds power without adding weight. Standard features include a heavy-duty gearbox and a large front handle for multi-position cutting.

Print Spec Sheets
HS 45 Specifications
DISPLACEMENT 27.2 cc (1.66 cu. in.)
ENGINE POWER 0.75 kW (1.01 bhp)
WEIGHT With 18" blade: 4.7 kg (10.4 lbs.)
FUEL CAPACITY 230 cc (7.8 oz.)
BLADE LENGTH 18"
STROKES PER MINUTE 3,700
POWER SOURCE Gas
Model Features
  • Zoom
    Anti-Vibration System
    STIHL has 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.
  • Zoom
    Double-Sided Blades
    The dual-ground blade system provides a clean cut and is ideal for cutting through stronger, thicker branches.
Standard Features

Important Information
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. Learn More…
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.
Click to view the STIHL Limited Warranty Time Periods
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    Padded stainless steel spring wire headband maintains constant pressure. Easy to adjust. Noise Reduction Rating (NRR): 29. Meets ANSI S3.19-1974 standard.

    Colors available: Camouflage, Orange and Grey
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    Brush Shield Protector
    Developed for users of clearing saws, trimmers and brushcutters. Epoxy-coated steel full face screen. Comfortable, adjustable hearing protectors with a Noise Reduction Rating (NRR) of 25 dB(A).

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Are You Ready for a STIHL?

HS 45 is rated 3.8 out of 5 by 85.
Rated 1 out of 5 by from HS45 Run Issues Should Be called Back! Purchase new and first time owning a Stihl USA from my local dealer because of their recommendations, From the time starting it as per own manual it would start, idle, and try to go full speed only to bog down and never reach full speed and this is with warm up after playing with the choke off to 1/2 to Off it would finally go to full speed but let off and it bogs again. Turn it off for a while forget it never starts. I have attempted to use this 5-6 times now and today is the last I give up on STIHL and they should be ashame of selling these defective HS 45 Trimmers! I will be trading in, selling or putting it in the garbage can and purchasing another brand.
Date published: 2017-11-26
Rated 1 out of 5 by from This product very unreliable to run Looks brand new, Bogs down when using it, thought it was the gas mixture, NOT the problem, I have all Stihl equipment and the gas works fine in everything else, I love Stihl products, but this thing is not what I expected, Stihl needs to recall this item, and save themselves the embarrassment, and protect their image. This is a bad one guys! I've been inconvenienced relying on this thing to run, and it bogs down, or wont start.
Date published: 2017-11-02
Rated 5 out of 5 by from This product is excellent I have used this hedge trimer several times science purchasing. I find it to be light weight, easy to use and overall very nice design.
Date published: 2017-10-30
Rated 1 out of 5 by from Don’t buy! Bought this trimmer because everything I own is stihl. Ran only descent first time I used it and have carried it back to dealer 3 times and every time they blame the gas which is the same gas I run in all other products. Doesn’t crank and when it does it just bogs down. Dealer tried new carb last time and back to the same, doesn’t crank. Last time I tried to use it cranked but bogged. Still looks brand new with only couple hours of operation. Garbage!
Date published: 2017-10-29
Rated 1 out of 5 by from A problem from the start I have purchased many Stihl products over the years. The HS45 is the only product I have regretted purchasing. This trimmer started the first couple of times I used it and has never started since. I have a friend who owns a landscaping company who was over the house with his crew doing some spring clean up. I asked him about my trimmer and he had the same story. He had purchased 3 or 4 HS45's and couldn't figure out why no one used them. He later found out that the workers could never get them started and used their old machines. He was able to trade them into one of the neighborhood shops for a more expensive model and didn't have an issue after. My friend asked one of his workers to try to start my machine. Even though he didn't speak English, he shook his head when he saw the model and said "garbage".
Date published: 2017-09-21
Rated 1 out of 5 by from Bent blade right away The blades are weak, and expensive to replace. I have a brand new one I gave to the repair shop because fixing it was 3/4 of the price of new. Disappointing purchase.
Date published: 2017-08-21
Rated 5 out of 5 by from runs like a dream, cuts really good! I purchased this one to replace my old HS45. It is the best hedge trimmer I have ever used. Easy to handle with the 24in blade. It feels like it has less vibration then my old one when it was new.
Date published: 2017-08-20
Rated 5 out of 5 by from Works how I need it too. Light weight and does a great job trimming hedges. A good lasting battery charge as well. It is just what I need to do the home trimming and shaping I have. I truly like the fact there is no gasoline (noise and hassle to maintain) or electrical cord (could be dangerous) necessary.
Date published: 2017-07-31
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