Power Tools Bosch 11335K Jack Hammer Review Impact Force and Vibration Control Tested

  • Impressive power-to-weight ratio, delivering 22 ft-lbs of impact energy while weighing only 38 pounds, making heavy-duty tasks more manageable.
  • Vibration control system significantly reduces operator fatigue through shock absorption in both the hammer mechanism and handle.
  • The 360° articulating auxiliary handle offers excellent versatility, allowing precise control in various working positions.
  • Durable all-metal housing and metal tube ensure the tool withstands tough jobsite conditions over extended use.
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Description

Highlights of the Demolition Jack Hammer’s Power and Efficiency

I’ve been putting the BOSCH Demolition Jack Hammer with 1-1/8-Inch Hex, 35-Pound Concrete Breaker (11335K) through some serious demolition tasks and what impressed me right away is its 22 Ft.-Lbs. of impact energy packed into a 38-pound frame. That power-to-weight ratio is no joke. This tool tears through concrete and asphalt with a smooth yet aggressive force that makes removal rates feel noticeably faster than many other breakers I’ve handled. The 15 Amp motor runs at 1,300 blows per minute, providing consistent, robust performance whether I was working on thick foundation slabs or stubborn outdoor asphalt patches.

The all-metal housing and metal tube add a certain heft and toughness that inspires confidence on rough job sites. I could feel the solid build quality every time I swung it into action. This hammer is not just about brute force; the grease-packed gearbox and hammer mechanism deliver a smooth, reliable operation that rarely feels jerky or uncontrollable. Overall, it’s a tool designed for heavy-duty use without sacrificing operator control.

Positive Features That Make Demolition Easier

One standout feature I really appreciated is the Vibration Control system. The combination of a longer air cushion in the hammer mechanism and a shock-absorbing top handle noticeably reduced the fatigue I usually get from extended use. Even after breaking through tough materials, my hands felt less beaten up than expected. The 360° articulating auxiliary handle also deserves a mention. It allowed me to adjust grip positions easily, offering better control no matter the angle—horizontal, vertical, or angled strikes.

The two-way tool retainer is another smart design choice. It accepts both Bosch 1-1/8-In. hex steel and standard 1-1/8-In. air steel bits, which gave me flexibility depending on what bits I had available or preferred to use. Plus, the carrying case with wheels made hauling the beast around much less of a hassle, especially on uneven terrain. Transporting it felt less like moving a demolition tool and more like rolling a suitcase.

  • Impressive power-to-weight ratio for efficient material removal
  • Vibration Control technology reduces operator fatigue
  • Versatile bit retention for compatibility with multiple tool steels
  • 360° articulating handle enhances grip and control
  • Durable all-metal construction built for tough environments

Areas for Improvement Worth Considering

No product is perfect, and my experience with this breaker hammer highlighted a few drawbacks. The weight, although justified by the power, is still significant at 38 pounds. I found some tasks, especially those requiring overhead or awkward positioning, quite tiring after sustained use. It’s not exactly a tool you want to lug around for hours without breaks. Also, despite the vibration control, the noise level is still loud, so using hearing protection is a must.

Another slight annoyance was the service minder brushes system. While I like the idea of automatic maintenance reminders, the tool shutting down unexpectedly mid-job when the brushes need replacement caught me off guard a couple of times. It’s a feature that could be better communicated or managed so users aren’t disrupted unexpectedly.

  • Heavy weight can cause operator fatigue during prolonged use
  • Loud noise output requires adequate hearing protection
  • Service Minderbrush shutdowns can interrupt work unexpectedly

Versatility and User Experience on Job Sites

The in-line design of this jack hammer really shone when tackling various demolition angles. I switched between horizontal and vertical applications without struggling to find a comfortable or effective stance. The tool balance made it easier to control impact placement precisely, which is a blessing when working near sensitive structures or tight spaces.

Family members and coworkers who tried it out also noted how the compact size (despite the weight) allowed the tool to fit into tighter demolition spots compared to bulkier breakers. Its power source being corded electric means no worries about battery life, which was a relief on long jobs where consistent power is critical. However, the cord can sometimes be a nuisance depending on the job environment.

Competing Products and How This One Stacks Up

Comparing this breaker hammer to other popular demolition tools like Makita’s HR5212C or DeWalt’s D25901, the Bosch stands out for its higher impact energy output and robust metal construction. The Makita, while lighter, doesn’t deliver the same raw power and tends to struggle more on thicker concrete. DeWalt’s model is closer in power but lacks the effective vibration control system found here.

On the downside, competitors often offer slightly better weight distribution or lighter models, which might be preferred for extended overhead work. Some rivals also feature integrated dust extraction systems, which the Bosch model doesn’t include. The wheeled carrying case is a thoughtful bonus that many others skip, adding convenience for transport.

Price Worthiness Relative to Features and Durability

Considering the tool’s durability, power, and thoughtful design features, I found the investment to be justifiable. The combination of grease-packed internal components and service reminders suggests long-term reliability, which balances out the initial cost. While cheaper options exist, they often compromise on power or build quality, which can lead to more frequent repairs or replacements.

This breaker hammer is not an impulse buy for casual users but offers good value for professionals or serious DIYers who demand a tool built to withstand rigorous demolition work. Its compact design and vibration control also add to its appeal, making it a tool that can reduce operator strain while delivering consistent performance.

Limitations in Handling and Maintenance

Despite its many strengths, this tool demands respect due to its heavy-duty nature and maintenance needs. Handling the 38-pound hammer requires decent physical strength and stamina. Occasional maintenance, like replacing the brushes, is essential to keep the tool running smoothly, and the auto shutdown feature, while helpful, can be frustrating if it happens unexpectedly.

Also, the lack of any built-in dust management means users need to plan for external dust control measures, especially in indoor or sensitive environments. The corded design, while providing endless power, restricts mobility compared to battery-powered alternatives, which could be a drawback on larger or more remote sites.

Summary of Positive Features

  • Exceptional impact energy with efficient material removal
  • Advanced vibration control and ergonomic handle design
  • Versatile bit compatibility for flexible job applications
  • Robust all-metal build for maximum durability
  • Convenient wheeled carrying case for easy transport

Summary of Negative Features

  • Heavy weight can cause fatigue during prolonged use
  • High noise levels necessitate hearing protection
  • Service Minderbrush shutdowns may disrupt workflow
  • Corded design limits mobility in some environments

Additional information

Brand

BOSCH

Power Source

Corded Electric

Voltage

120 Volts

Amperage

15 Amps

Maximum Chuck Size

13 Millimeters

Color

Blue

Included Components

Unit^Instruction Guide

Special Feature

Compact

Product Dimensions

17\"L x 17\"W x 20\"H

Material

Composite

Speed

1300 RPM

Item Weight

57 pounds

Maximum Power

850 Watts

Item Torque

22 Foot Pounds

Drill Type

Hammer Drill

Is Electric

Yes

UPC

094716836565 000346370195

Global Trade Identification Number

00000346370195, 00000346000016

Manufacturer

BOSR9

Part Number

11335K

Country of Origin

Germany

Item model number

11335K

Is Discontinued By Manufacturer

No

Style

Jack Hammer Kit

Item Package Quantity

1

Special Features

Compact

Batteries Included

No

Batteries Required

No

Battery Cell Type

Lead Acid

Warranty Description

1 year manufacturer warranty, 30 day money back gaurantee

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