Product Details

• Amazon Sales Rank: #9516 in Home Improvement
• Brand: BOSCH (S-B Powertools)
• Model: 11241EVS
• Number of items: 1
• Dimensions: 9.00" h x 4.00" w x 17.25" l, 14.00 pounds

Features

• 11-amp motor delivers 170 to 340 rpm and 1,700 to 3,300 bmp
• Constant response circuitry maintains speed under load and provides overload protection
• Vario-lock chuck allows for user positioning of chisel
• Dual mode selector allows for both rotary hammer and hammer only use
• Turbo power delivers 20 percent more power in hammer only model; 1-year warranty

Amazon.com Review
A combination hammer is probably the most expensive tool you’ll buy for the job site, and with this Bosch, you know you’re getting top performance for your money. This model is enormously efficient, powerful and versatile, turning stubborn tile into rubble and drilling effortlessly into 3-inch thick concrete.

Part of the beauty of this combination 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.

First, the features: Bit changes couldn’t be faster or easier, to the credit of the SDS-max bit system. Just twist the bit and push it in until it locks into place automatically, and you’re ready to work. Set the selector lever to one of three clearly marked positions: hammer only, if you’re chipping or demolishing; rotary hammer for drilling; or the 0 (horizontal) setting to use the great vario-lock feature, an ingenious setting that lets you position your spade or gouge at exactly the attitude you need. While in the vario-lock setting, you just rotate the locking sleeve to one of 12 positions at 30-degree increments, then switch the selector back to hammer mode. An easy twist of the locking sleeve secures the bit in position. And when you’re in hammer-only mode, the tool automatically boosts power by 20 percent for maximum chiseling.

Maximum speed is controlled by the Auto-Max® dial on the tool body, just above the service reminder and power indicator lights, another top-of-the-line Bosch feature we love. The Service Minder light illuminates when it’s time for preventative maintenance, and the beautiful Bosch design lets technicians quickly replace your brushes or power cord and get your tool back in your hands as fast as possible.

Aside from its incredible power, the feature that stands out for us is the ergonomics Bosch is famous for. They’ve been working on it since the 1950s, decades before most of us even heard the word. In this tool, you’ll notice the distinct reduction of vibration, the lion’s share of it absorbed by the tool’s handle, not your arm. The auxiliary handle swivels a full 360 degrees, so you’re never straining and risking injury at an awkward work angle.

We rarely find a tool that we can’t tack a wish list of changes onto, and this is definitely one of them. It’s the quality, power, comfort and dependability Bosch is deservedly known for. -- Kris Jensen-Van Heste

What’s in the Box
Combination hammer, auxiliary handle, carrying case

Amazon.com Product Description
This tough new SDS-Max combination hammer offers dual mode operation for hammering with or without rotation. It features a variable-speed 11 amp motor that provides 170 to 340 rpm and 1,700 to 3,300 beats per minute. The hammer delivers 6.2 foot-pounds of impact energy in regular operation, and up to 7.4 foot-pounds in turbo mode. The tool's constant response circuitry ensures a soft start and a constant speed under load. The combination hammer also includes an indicator light to let you know when preventative maintenance is required and a power light that indicates when the tool is plugged in and ready for use. This hammer is 17-1/4 inches in length, weighs 14 pounds, and has a maximum bit size of 1-9/16 inches.

From the Manufacturer
The Bosch 11241EVS 1-9/16-inch SDS-Max combination hammer features an 11 amp motor with variable speed, an Auto-Max variable-speed dial designed to ensure maximum speed and power each time the tool is plugged in, and a dual-mode selector lever for hammering with or without rotation. The turbo-powered unit also features 20 percent more power in hammer-only mode. The SDS-Max system delivers tool-free bit changes with automatic bit locking, dust protection, and a maximum-impact energy transfer rate. The tool includes such extras as innovative service modules designed so a qualified service technician can quickly replace the brushes and cord and Constant Response circuitry.

Features

• SDS-Max bit system offers tool-free bit changes, with automatic bit locking, dust protection, and efficient impact-energy transfer rate
• Combination dual-mode selector delivers 2 modes of operation: rotary hammer and hammer-only mode
• Auto-Max variable-speed dial is designed to automatically ensure the maximum speed and power every time the tool is plugged in
• Constant Response circuitry provides soft-start and maintains constant speed under load, as well as overload protection
• Turbo power delivers 20 percent more power in hammer-only mode
• ServiceMinder light indicates when preventative maintenance is required
• Power light ensures operator that power feed is live
• Innovative service modules are designed so a qualified service technician can quickly replace the brushes and cord
• Vario-Lock positioning--service modules for brushes and cord
• Patented cord turret provides added flexibility and reduces cord wear

Specifications

• Rating: 120 volts
• Amps: 11 amps
• No-load speed: 170 to 340 rpm
• No-load beats per minute: 1,700 to 3,300 bpm
• Impact energy: 6.2 ft./lbs. (normal), 7.4 ft./lbs. (turbo)
• Max hole diameter in concrete: 1-9/16 in.
• Max hole diameter in concrete (core bit): 4 in.
• Max hole diameter in concrete (thru hole bit): 2-1/2 in.
• Optimal concrete capacity range: 1/2- to 1-3/8 in.
• Maximum bit size: 1-9/16 inches
• Length: 17-1/4 inches
• Weight: 14 lbs.

Includes

• Auxiliary handle
• Carrying case

Warranty
This Bosch power tool comes with a one-year limited warranty from the date of purchase.

Customer Reviews

Very effective when used correctly
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.

Rugged, reliable and very high quality
I have had my Bosch 11241EVS for about three months now. I got tired of renting a hammer for about $80 a day plus the time/gas required for turn around at the rental agency. This Bosch combo hammer was paid for after only 6 days use. Sweet!

I have used it to cut 1 1/4" and 1 1/2" holes through 3" cured floors, chopped a number of 8"x16" concrete beams that needed to be trimmed 4", chopped beam pockets, chopped out many 4" deep rectangular holes for receptacle boxes that the tilt up guys forgot to cast in place and cut many holes for the electricians. This tool has never given me a moment of problem. It has performed perfectly. Vibration and noise is reasonable, soft start up is a big safety plus, the big SDS Max chuck releases instantly at all times. The balance and ergonomic design of the handles is first rate. Working with a chisel chops out cured concrete as easily as if you were removing hard wood. The many blows per minute multiplies the power of this machine dramatically. Working in the hammer mode increases power about 20% and I assure you, it makes quick work of demolishing, chopping or drilling most anything. SDS Max drills and core bits are very popular, have a tremendous selection. The SDS Max design is extremely rugged and easy to engage or disengage.

The only criticism I have concerns the 'on' lock button which can be in the depressed position so that when the power cable is first plugged in, the tool starts. (You must apply pressure to the bit or core before it actually hammers.) I just make sure it is definitely not depressed.

This machine does big work, is not too heavy (saves my back!), and in its carrying case, fits nicely in my truck. It has saved my bacon many times and it has earned my gratitude. I am extremely satisfied with this tool and recommend it for consideration to anyone who wants a high quality combination hammer with power.

Good Investment
I have been using the Bosch 11241EVS 1-9/16-Inch 11-Amp SDS-Max Combination Hammer for three years. No problems. It was a great investment because I would have had to rent a similar product at least 20 times over that period. I have used it to dig footings and trenches in the local hard-pan clay; drill into concrete slabs; break and remove concrete sidewalks; and, break out mortered stone walls. I use the clay spade, and a variety of SDS-MAX bull-points, chisels, and drills. I highly recommend it.