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Demolition Electric Jack Hammer w/ Bits & Heavy Duty Metal Case

4.3 out of 5 stars 87 customer reviews
| 14 answered questions

Price: $183.00 + $26.99 shipping
Only 13 left in stock.
Ships from and sold by DCMM General Store.
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  • Demolition Electric Jack Hammer w/ Bits & Heavy Duty Metal Case
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$183.00 + $26.99 shipping Only 13 left in stock. Ships from and sold by DCMM General Store.

Frequently Bought Together

  • Demolition Electric Jack Hammer w/ Bits & Heavy Duty Metal Case
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Total price: $256.02
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Technical Details

  • heavy-duty

Product Description

Features: •Voltage: 110 Vlt •Frequency: 60 Hz •Power: 1240 Watts (11.27 Amps) •No Load Speed: 1400 RPM •Heavy Duty Steel Case •360 Degrees Swivwl Side Handle - Standard Accessories: •Side Handle •2 Pcs 16" Chisel: standard 1-1/8 inch hex bits •Spanner •Hex Key •Goggle •Pair Working Gloves •Bottle of Oil

Product Information

Technical Details

Item Weight 44 pounds
Product Dimensions 28.2 x 12.1 x 6.8 inches
Origin Antigua And Barbuda
Special Features heavy-duty
Included Components case

Additional Information

ASIN B0038AAPG8
Customer Reviews
4.3 out of 5 stars 87 customer reviews

4.3 out of 5 stars
Best Sellers Rank #235,518 in Home Improvements (See top 100)
#29 in Home Improvement > Power & Hand Tools > Power Tools > Concrete Tools > Demolition Drills & Hammers > Demolition Drills
Shipping Weight 44 pounds (View shipping rates and policies)
Date First Available April 7, 2010

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Customer Reviews

Top Customer Reviews

Verified Purchase
I had earlier saw-cut my 4" thick concrete driveway and needed a jack hammer to reduce the size of the slab for ease of loading and transport. Within about three days after I purchased this jack hammer tool from Sky via Amazon, I received the tool as described. The tool was delivered in a package using double card board boxes. Perhaps responding to other Amazon comments regarding dented tool box, Sky's packaging came with plastic air bubble as cushions between the paper boxes as well as styrofoam inside the metal box holding the heavy jack hammer. The tool came with two chisels, a pointed and a flat, two hex allen-wrenches, a plastic bottle containing about 10cc of oil, a plastic eye protection goggle, a pair of glove, and an instruction book.

Attaching the chisel to the hammer is a breeze, involves turning a lever to open, sliding the chisel in and turning the lever to lock. Prior to using the jack hammer, I had to fill the oil reservoir according to instruction. As the 10cc of oil included with the purchase appears to be bare minimum, I supplemented until the entire reservoir was filled. The jack hammer works as described and more. Labelled as made in China, this jack hammer appears to be heavy duty. I would not be surprise if a jack hammer contractor employs this tool in his daily work. Compared to the nearly $900 dollar jack hammer from Bosch, Milwaukee or others, this jack hammer is a bargain. For a homeowner such as myself, who occasionally needs a jack hammer, purchasing this hammer more than fits the bill as I was able to demolish all my concrete slab within two to three hours. I awarded 5 stars rating because I couldn't really fault this jack hammer at this price.
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Verified Purchase
Length: 7:31 Mins
I needed to break up a 10x10 slab, saw these hammers on Amazon, you can tell these 4 hammers that look identical are made by the same manufacturer, I went with the SKY for only $109, I ordered on a Friday and it arrived Monday UPS! It arrived in one piece and in good condition, you get 2 bits, safety glasses, tools and gloves with this along with the metal case, you have to check the oil level before you use, important. I started my project just to see if it works, so far very good, hammer has a decent kick, easily broke up the slab I'm removing (check out my youtube vid), we'll see how it holds up on the whole job.... I would say so far its a great deal for the money.
2 Comments 46 of 47 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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On the plus side, the hammer is powerful for its size and cost. On the minus side - after three days of heavy use the hammer quit. To be fair, my son-in-law was using it and ignored the "hot smell" coming from the hammer. It was a very hot day and we were using the hammer continuously to break up an old concrete patio. It was simply too much for the hammer... I would describe this more as a light duty hammer than commericial or industrial grade. Also, the "heavy duty metal case" is a joke. It's light weight and was badly dented when the hammer arrive although the hammer was ok.

With regard to the fried motor - I was prepared to put in a new one, but could find nothing on the internet.

With all of the above in mind, I actually plan on buying another one. I attribute the failure to abuse... the failure could have been avoided. However, if I had another large project, I would rent an industrial grade jack hammer (which is what I had to do to complete the project). The hammer is well constructed, but the motor is light duty...

Hope this is helpful.
2 Comments 19 of 19 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Verified Purchase
After trying to break up a heaved 4 inch thick concrete walkway set in wet soil using a sledge hammer, I concluded that working on the rock pile was a good punishment for misbehaving convicts - I also concluded that I deserved better. Purchasing this tool was a better solution.

I read all of the reviews of this, and similar demo hammers. Some of the feedback was obviously taken seriously, and a packaging engineer hired to ensure survival of the tool during shipping - mine arrived in excellent shape. That being said, the plastic bottle of gear oil leaked, and converted the lube into a messy corrosion protectant...a trip to the hardware store to purchase some gear oil and the oil reservoir was filled, and the tool was ready for work.

This isn't the all powerful, 150 lb pneumatic jack hammer that you see being used by construction workers, but it is very effective if used with some knowledge. The most useful bit of the two included, the pyramid bit, is essentially a 35# wedge, and is effective if used as follows: 1) Make sure the edge or corner that you are working has a "free" surface - when the wedge plunges into the concrete, the chunk you're breaking away will need somewhere to go - it won't easily push adjacent concrete, soil, etc. 2) Start on a corner if possible, and use the point to make some small, 1-inch deep impact holes (these are stress risers - they don't need to go completely through the slab) spaced 3-4 inches apart, making a semi-circle 8-12 inches from the corner. 3) For the final impact hole, angle the point slightly toward the edge of the slab, and keep going until the corner piece cracks off. 4) Repeat as necessary to break up the slab.
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