Showing posts with label demolition. Show all posts
Showing posts with label demolition. Show all posts

Bosch 11230EVS 1-1/2-Inch Electronic Variable-Speed SDS-Max Rotary Hammer with Stop Rotation Review

Bosch 11230EVS 1-1/2-Inch Electronic Variable-Speed SDS-Max Rotary Hammer with Stop Rotation
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Rotary hammers are a big buck item so its important to consider all of them. I use this Bosch hammer in my electrical contracting business. Its small enough to handle easily and it is built to minimize the vibration that comes with drilling concrete. It can drill through concrete up to is specification and handle ground rod driving too. Buy this unit and the Bosch bits but consider the DeWalt accessories, like ground rod driver or spade bit, because they are usually less money.

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Factory-Reconditioned Bosch 11247-RT 1-9/16-Inch 10-Amp Spline Combination Hammer Review

Factory-Reconditioned Bosch 11247-RT 1-9/16-Inch 10-Amp Spline Combination Hammer
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Held up well for 2 years, but now needs a $300 repair, so ordered a new reconditioned one. I guess thats not a bad run, was well used!

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This tough new spline drive combination hammer offers dual modeoperation for hammering with or without rotation. It features a 10 ampmotor that provides 400 rpm and 3,000 beats per minute and delivers 5.2foot-pounds of energy with each impact. It has an integrated clutch tohelp minimize torque reaction and Vario-Lock positioning that rotatesand locks chisels into 12 different positions to optimize the workingangle. This hammer is 17-1/4 inches in length, weighs 13.6 pounds, andhas a maximum bit size of 1-9/16 inches.

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Bosch 11245EVS 2-Inch SDS-Max Rotary Hammer Review

Bosch 11245EVS 2-Inch SDS-Max Rotary Hammer
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I purchased this unit after test-renting a Bosch 11316 Demolition Hammer in order to dig 25 very deep tree holes in the hard, California clay soil where I live. The 11316 was massive overkill for the job (I used it on 30-40% power all day), and often sunk deep into the cement-hard soil just under its own weight!
The 11241 is a fantastic tool - it digs with a clay spade at a moderate pace, dramatically reducing workload for terraforming (moving a lot of dirt, as I did with a retaining wall), and for trenching, digging, and moderate-duty demolition.
BEWARE - it takes 3-4 hours of use before it really *works*. Out of the box, brand new, you will swear this thing is broken. Read the manual - it vaguely refers to a 5 hour break-in period. Trust me, not much happens for the first 2 hours - I recommend finding drilling applications.
So far, I've trenched, drilled holes in concrete, done terraforming, and some serious digging for tree planting and
other gardening tasks. The weight of this unit is ideal for the application, and the power is just sufficient. (5 stars would be reserved for a bit more power - it takes a while to get through some applications where old roots are in the way - the 11316 cut through them like a hot knife through butter).
I've yet to try this unit on concrete - I suspect it will do a credible job, but not great, due to its moderate power output.
I have the clay spade, acaling chisel, and two bull points of different lengths. All work very well.
One superior aspect of this unit over the 11316 monster - the vibration isolation is really nice in the handle. My wrists can tolerate 2-3 hours/day of this work, where 2 hours of the 11316 caused me a week or so of serious aching.

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Makita HM0810B 11-Pound Demolition Hammer Review

Makita HM0810B 11-Pound Demolition Hammer
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the HM0810B is the best, lightweight hammer on the market. 2900 blows per minute, with a weight of only 11.7lbs. This is the hammer that should be used for chiseling, chipping and scaling, NOT the HK1810, which should only really be used for removing tile and plaster.

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This Hammer is compact and lightweight for maximum control and is ideal for light chiseling, scaling and chipping operations. Its soft rubber grip side handle swivels 360 degrees for easier handling. A unique anti-vibration spring is positioned between tool body and rear handle for reduced operator fatigue. This demolition hammer can be fitted with spline-style rotary hammers shank bits. Its one-touch retainer action means easy accessory installation and removal. The durable carbon brushes on this tool last for approximately 150 hours. Makita factory greased packed this tool for reduced maintenance. Your purchase includes a No. 4 hex wrench and a sturdy plastic tool case.

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Hitachi H65 1-1/8-Inch 11.4 Amp Hex Shank Demolition Hammer Review

Hitachi H65 1-1/8-Inch 11.4 Amp Hex Shank Demolition Hammer
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I have used this demo hammer for numerous purposes and have always found that this demo hammer handles the job.
The other companies have models that are to heavy to handle!!! At just around 40 pounds this demo hammer is a true utilitarian!!
I have used this hammer on numerous jobs from portland cement to footings and have found that the lightweight and balance of this demo hammer in UNBEATABLE!!!
It is comfortable to use and handle and is well suited for different applications....Believe me I have used them all and have found that this hammer is the BEST!!!!!!

Click Here to see more reviews about: Hitachi H65 1-1/8-Inch 11.4 Amp Hex Shank Demolition Hammer

The Hitachi 1-1/8-Inch 11.4 Amp Hex Shank Demolition Hammer increases productivity on tough demolition applications. This Hitatchi hammer delivers forcible chipping with 20.7-feet-per-pounds of impact energy and 1,400 blows per minute. Its automatic oiling system with unique "air pressure oil control" extends the life of the 11.4 Amp motor, and enables extended use without oiling. Other features include idle hammering prevention to increase tool life, and an adjustable side D-handle, which rotates for better control. This demolition hammer comes with a limited 1-year warranty on parts and labor.
What's in the Box Hitachi 1-1/8-Inch 11.4 Amp Hex Shank Demolition Hammer, side handle, wrench, hex wrench, bull point, oil feeder, and steel carrying case.

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Bosch 11316EVS SDS-Max Demolition Hammer Review

Bosch 11316EVS SDS-Max Demolition Hammer
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I am no stranger to midweight electric demolition hammers. I have owned Bosch hammers in this class and I have used dozens of rentals, mainly Kango. I can't rate it against the competition brands such as Makita or Hitachi because I have not used them,but I can tell why I love this hammer.
It is light and compact; seeing the case you would not think that it was a demolition hammer. I stress that it is smaller and lighter than other hammers of similar capability that I have used. By smaller I am I mean shorter by several inches. Desipte its size and weight it hits hard and I am judging this by extensive experience with hammers in this class.
SDS max demolition hammer bits are becoming easy to find in retail hardware and lumber yards and this can mean a lot if you break a point off early in the day on a critical job.
You don't have to turn the tool off when you are not engaging the tool into the work, at least , there is no mention of this in the manual and it doesn't have the conventional trigger switch. In the past I have found that the switches often wore out due to the constant on off needed to prevent damage to the hammering mechanism. Now I just leave it running when lifting the tool to a new position, or in the case of clay spade digging, rocking the tool to break up compacted soil.
I wish I could say that it is long lasting and rugged but I have only put a few hours of use on it; so far so good. At least I can say that the feel of it inspires my confidence that it will be a performer over time and my experience with Bosch tools in other catagories has been good.
To sum it all up, smaller and lighter translates into less problem and work for me. Hard hitting means good production and more money for me. SDS tool availibility means I can get new bits easily when I need them.

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Toolhounds know the old saying regarding a tool that does only one job, but does it like nothing else can. That's certainly the case with this demolition hammer from Bosch. It may not be versatile, but it absolutely does its job. This model is a favorite because it's so user-friendly, weighing in at under 23 pounds and about as many inches in length - practically diminutive next to its competition. Its power, however, is not at all relative to its size, offering a range of impact energy from 4.4 to 18.4 ft./lbs. and up to 1,890 blows per minute, reducing tough concrete to dust. Part of the beauty of this hammer is that it actually doesn't want you to do the work for it; we found that exerting force on it actually slows you down. Instead, firm, steady pressure got us the best results. We particularly like the design of this hammer; instead of the traditional linear approach, Bosch built it more like a pistol, and that may (or may not, we're not rocket scientists) be part of why so little vibration is felt. The rear handle is generously padded, and the auxiliary handle rotates 360 degrees so you can set it exactly where you need it.

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