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Bosch RH328VC 1-1/8-Inch SDS Rotary Hammer

by Bosch
4.7 out of 5 stars 106 customer reviews
| 35 answered questions

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  • Unmatched Power to Weight Ratio - 8.0 Amps, 2.6 ft-lbs Impact Energy and 7.7 lbs - Best Performing rotary hammer in its class !
  • Vibration Control - Vibration reduction in the hammer mechanism and the grip area provides maximum user comfort for extended periods of work
  • Multi-Function Selector - 3 modes of operation: Rotary Hammer, Hammer-Only mode, and Rotation only mode.
  • Integral Clutch - Helps minimize torque reaction
  • Variable Speed 3-Finger Trigger - Better operator control and accurate bit starting.
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  • Bosch RH328VC 1-1/8-Inch SDS Rotary Hammer
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  • Bosch HCK001 7-Piece SDS-plus Rotary Hammer Drill Bit Set
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This item: Bosch RH328VC 1-1/8-Inch SDS Rotary Hammer
Customer Rating 4 out of 5 stars (106) 5 out of 5 stars (248) 4 out of 5 stars (8) 4 out of 5 stars (13)
Price See price in cart $179.00 $322.76 $362.06
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Amazon.com Amazon.com
Item Package Weight 13.6 pounds 11.5 pounds 14 pounds 16.8 pounds
Power Source corded-electric corded-electric corded-electric corded-electric
Voltage 120 Volts 120 Volts 120 Volts 120 Volts
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Product Description

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Product Description

Includes 1-1/8-in 120V SDS-plus Quick-Change Rotary Hammer - RH328VC, Auxiliary Handle, Carrying Case

Amazon.com

The Bosch 1-1/8-Inch SDS-plus Rotary Hammer offers the ideal combination of power, impact energy, drilling speed, and comfort. It features vibration control for superior performance, and an excellent power-to-weight ratio for fast chiseling and drilling. It also provides three modes of operation--rotary hammer, hammer only, or rotation only--and an integral clutch to make this tool more versatile. The hammer comes with an auxiliary handle and a carrying case.

Bosch Logo
1-1/8-Inch SDS Rotary Hammer
At a Glance:
  • Three modes of operation: rotary hammer, hammer only, and rotation only

  • Excellent power-to-weight ratio with 7.7-pound body providing 2.6 ft./lbs. of impact energy

  • Reduces vibration in two-step process

  • Includes auxiliary handle and carrying case

  • One-year limited warranty
At a Glance
Bosch RH328VC 1-1/8-Inch SDS Rotary Hammer
Advanced vibration control and three modes of operation help you power through the toughest jobs. View larger.
Bosch RH328VC 1-1/8-Inch SDS Rotary Hammer
Superb power-to-weight ratio offers ideal handling and control. View larger.
Two-Step Vibration Control
The rotary hammer provides vibration control without compromising performance. It reduces vibrations via a two-step process, originating from the impact mechanism and progressing to the handle, which features rubber dampening elements on the top and bottom.

Excellent Power-to-Weight Ratio with Variable Speed Trigger
Powered by an 8-amp motor, the hammer weighs 7.7 pounds and provides 2.6 ft./lbs. of impact energy, making it the one of the best rotary hammers in its class.

For better control and accurate bit starting, the rotary hammer boasts a variable speed three-finger trigger (0-4,000 bpm; 0-900 rpm).

Three Modes of Operation for Versatile Use
The rotary hammer offers three modes of operation. Use the multifunction selector to choose rotary hammer, hammer only, or rotation only mode. An integral clutch helps minimize torque reaction, and a 360-degree auxiliary handle further enhances project flexibility.

Warranty Information
The Bosch 1-1/8-Inch Rotary Hammer is backed by a manufacturer's one-year limited warranty.

What's in the Box
Rotary hammer, auxiliary handle, and carrying case.



Product Information

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Technical Details

Part Number RH328VC
Item Weight 13.6 pounds
Product Dimensions 19.2 x 14.6 x 5.3 inches
Origin Anguilla
Item model number RH328VC
Color N/A
Finish N/A
Power Source corded-electric
Voltage 120 volts
Item Package Quantity 1
Included Components Bare-Tool
Batteries Included? No
Warranty Description 30 Day Money Back Guarantee - 1 year warranty

Additional Information

ASIN B003DQO7ES
Customer Reviews
4.7 out of 5 stars 106 customer reviews

4.7 out of 5 stars
Best Sellers Rank #16,817 in Home Improvements (See top 100)
#4 in Home Improvement > Power & Hand Tools > Power Tools > Concrete Tools > Demolition Drills & Hammers > Rotary Hammers
Shipping Weight 13.6 pounds (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available April 6, 2010

Warranty & Support

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Customer Reviews

Top Customer Reviews

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I was using a Ridgid R7121 Drill, 1/2-Inch Spade Handle Mud Mixer to drill holes in freshly poured concrete for rebar for a large garage I was building. One hole would require me putting all my weight on the drill for about 10 minutes as it vibrated my wrists. Of course spade drills are designed for mixing wet mud, not drilling into hardened mud. And it would make the drill hot.

I got tired of abusing my big mixing drills, and my wrists like that, so I got this Bosch SDS. I got it factory reconditioned from CPO. I could not tell it had been used other than the box was open. It drilled the same hole my spade drill took 10 minutes to do in 15 seconds.

I've run this drill for hours doing nothing but 1/2" rebar holes and it doesn't get hot, just keeps going. No problems yet after a few buildings.

SDS stands for slotted drive system. It uses a special kind of drill bit. Normal bits will not work without an adapter which I cover in the next paragraph. Basically you click a bit on, and the chuck locks it in place. Then only the bit is impacted in the chuck, instead of the entire chuck being impacted. Or to put it another way, only the bit moves while the chuck stays in place. This makes it a more efficient transmission of power, which is why SDS drills are all more powerful than traditional hammer-drills. Traditional hammer-drill chucks have more weight they need to move up and down.

The drill has three settings. Drill only. Impact only. And drill and impact, like all SDS drills. And like all SDS drills the handle has vibration absorption.
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I use this hammer drill for work (rough & finish carpentry, remodeling). I use it primarily for drilling holes into concrete or masonry block. I've used the chipping only function once to remove some old ceramic tile floor, worked exceptionally well.

The anti-vibration is great and easy on your hands. The case is ample sized for bit storage. I also picked up a Bosch SDS-to-adjustable-chuck adapter so I can use the drill only function for large holes in wood my cordless drill is not up for.

If you're considering this drill versus a Hilti (like I was), save $200 and get the Bosch. It's made in Germany and has one year less of warranty compared to the Hilti (no biggie, all tools break and you get them repaired).

*****update 12-30-2012******

Still using this hammer for my work tasks. It shows that the tool has been worked. The rubber impact cushion on the tip of the SDS chuck has cracked and needs replacing. I've done 3-4 tile floor demo jobs with the hammer in chip mode, so this is probably the reason for the crack. Using a Bosch tile scraper bit, I pry up with the hammer.

I've done window, door, and sliding glass door installations. Chipped stucco and concrete. Drilled out 3/4" holes for epoxied 5/8" dai. anchor bolts in concrete tie beams and through wood plates with a long auger bit. I like the size of this drill because it fits into smaller spaces (between floor joists or wall studs) during framing applications and also is easier to install smaller windows with it (think 24" x 24" fixed glass windows or smaller). I use the depth rod quite often.

The hard case has held up. I've got it jammed full of bits etc. The cord doesn't kink up and folds away well each time. The drill itself shows signs of wear on the body from being dropped and dragged. None of this effects it's performance. This tool is definitely professional grade.
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I repair hammer drills, mostly Bosch model 11239VS which this model replaces in the Bosch line up, as my job on average 5 a week. I have seen the full range of wear and tear needing mending from regular use and abuse by carpenters. THis hammer drill works fine but sadly this newer model's parts' design and materials are not up to the task. There are a few parts in a hammer drill that wear and tear faster than others, the clutch gears, the bit sleeve and the chuck cover. Sadly these wear out much faster than their counterparts in the earlier model.

An additional note: Bosch will not sell these components individually any longer. They are only able to be purchased in an assembly. They don't even provide a part number on the Bosch schematic for the tool.

This is a major step back for a company I had a great deal of respect for engineering and quality-wise. If you want an excellent hammer drill I suggest finding a Bosch 11239VS and not the RH238VC.
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I first bought the Makita 1 1/8 inch SDS-Plus Rotary Hammer. There were a couple problems with it. The side grip was really hard to position because there are these notches. So the the whole grip had to be removed and then re-positioned again and push down back into place. I used it once. Then when I tried using it again a couple months later, it wouldn't work. So I returned it and bought this one.

First off, their is no comparison between the Bosch and the Makita. I used it to drill a bunch of 5/8 inch holes and it drilled through concrete like butter. The Side grip is very easy to adjust and the depth guide works great. Oh the Makita, you had to tightened the handle as tight as possible to hold the guide, and still it would slide up when drilling.

This drill has an SDS-Plus chuck. I don't think it mentioned that in the description. Overall I'm very happy with this, and highly recommend it.
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Bosch RH328VC 1-1/8-Inch SDS Rotary Hammer
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