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Bosch 1773AK 5-Inch Concrete Surfacing Grinder

4.1 out of 5 stars 43 customer reviews
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  • 10-amp concrete surfacing grinder, perfect for smoothing floor pavement, removing graffiti, cleaning concrete surfaces
  • Also ideal for removing irregularities, formwork seams and protrusions
  • Double sealed ball bearings and two -Inchlip-sealing-Inch protective rings for added protection against dust contamination
  • 5-Inch wheel diameter, 11,000 RPM
  • Wrap-around auxiliary handle for easy handling
2 new from $1,000.00 1 used from $200.00 1 refurbished from $341.69

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Product Description

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Product Description

114-1773AK Features: -Lock-on/off switch for extended use applications. -Double sealed ball bearings and two ''lip-sealing'' protective rings - added protection against dust contamination. -Automatic restart protects against automatic restart after a power failure. -Sealed switch keeps debris out of the switch mechanism and extends switch life. Product Type: -Grinders. Generic Specifications: -Voltage: 120.00 VAC. Generic Dimensions: -Length: 13 3/4 in. Dimensions: Overall Depth - Front to Back: -13.75 Inches. Overall Product Weight: -14.5 Pounds.


Perfectly suited for the building trade, the Bosch 1773AK 5-Inch Concrete Surfacing Grinder makes fast, safe work of refurbishing and de-burring exposed concrete. Also ideal for removing irregularities, formwork seams, and protrusions, the 1773AK features a dependable, 10-amp motor, diamond cup wheels, and a dust management feature.

The Bosch 1773AK 5-Inch Concrete Surfacing Grinder includes:
  • Auxiliary handle
  • Flange kit
  • Spanner wrench
  • Five-inch diamond cup wheel (DC510)
  • Vacuum adapter (VAC002)
  • Three brush rings
  • Carrying case

The specially designed head provides clean, safe dust extraction. View larger.
View Product Demo.

Features include Bosch's trademarked Constant Response Circuitry and automatic restart protection. View larger.

Bosch diamond cup wheels last longer and provide safer grinder operation. View larger.

Choose the right diamond cup wheel for the job. View larger.
Powerful, 10-Amp Motor for Dependability
Whether you're working in a granite shop, smoothing floor pavement, erasing graffiti, removing weather-worn paint, or cleaning surfaces, the 1773AK is up to the task, thanks to its powerful 10-amp motor that delivers 11,000 RPM. Bosch's trademarked Constant Response Circuitry maintains constant motor speed under even the toughest jobs, providing overload protection and delivering a reduced-torque soft start that safeguards your work surface.

For added safety, automatic restart protection guards against restart after a power failure, and it ensures that the tool is never powered on unless you need it to be. And a lock-on/lock-off switch lets you tackle extended-use applications comfortably.

Diamond Cup Wheels for Precision and Safety
Bosch diamond cup wheels, like the five-inch wheel included with the 1773AK, last longer, offer reliable performance, and provide safe grinder operation. Bosch diamond cup wheels are crafted with high-grade diamond segments, and they are manufactured using a process that includes 100-percent dynamic counterbalancing of every grinding head for comfortable, reliable, and vibration-free work.

The diamond cup wheels' five-hole dust extraction design provides an optimal combination of allowable airflow and material removal that complements the rest of the 1773AK's dust removal features.

Innovative Dust Management for Clean, Safe Operation
The 1773AK features a convenient dust extraction port and comes packaged with a vacuum adapter to help keep your work area clear, safe, and free of dust. This concrete grinder also boasts a specially designed head for surfacing applications, which combines with the Bosch diamond cup wheel to ensure clean, safe dust extraction that exceeds both UL and OSHA safety requirements.

The dust collection system also utilizes a replaceable brush ring to help you maintain dust-free working conditions over time.

Sealed Against Dust and Debris for a Long Life
With epoxy-coated field windings, a sealed switch, double-sealed ball bearings, and two lip-sealing rings to protect against dust contamination, the 1773AK is built to stand up to the toughest jobsite conditions.

For added convenience, the grinder's spindle lock allows for quick wheel changes on the job. And when preventive maintenance is required to keep your concrete surfacing grinder in top shape, the trademarked Service Minder light lets you know.

Practical, Ergonomic Design for Ease of Use
A slim, ergonomic barrel means you can grip the 1773AK comfortably and securely, even when you're removing mortar from a bathroom floor or working in another tight space. The grinder's wraparound auxiliary handle provides control from a variety of angles, and it offers multiple hand positions for decreased operator fatigue.

The 1773AK concrete surfacing grinder is backed by a one-year warranty, 30-day, money-back guarantee, and one-year service protection plan.

What's in the Box
Bosch 1773AK concrete surfacing grinder, auxiliary handle, flange kit, spanner wrench, five-inch diamond cup wheel (DC510), vacuum adapter (VAC002), three brush rings, and carrying case.

The 1773AK is ideal for everything from form-smoothing to floor prep and granite installation.

Product Information


Technical Details

Part Number 1773AK
Item Weight 14.9 pounds
Product Dimensions 19.8 x 14.9 x 10.6 inches
California residents Click here for Proposition 65 warning
Item model number 1773AK
Color NA
Finish NA
Power Source electric-powered
Voltage 120 volts
Item Package Quantity 1
Included Components case
Batteries Included? No
Batteries Required? No
Warranty Description 1 year

Technical Specification

Additional Information

ASIN B0000719W8
Customer Reviews
4.1 out of 5 stars 43 customer reviews

4.1 out of 5 stars
Best Sellers Rank #313,816 in Home Improvements (See top 100)
#42 in Home Improvement > Power & Hand Tools > Power Tools > Grinders > Straight Grinders
#301 in Home Improvement > Power & Hand Tools > Power Tools > Grinders > Angle Grinders
#15,320 in Home Improvement > Contractor Supply
Shipping Weight 14.9 pounds
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available October 9, 2002

Warranty & Support

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


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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Color: NA
I do residential construction and was looking for equipment that can shape concrete foundations, piers and slabs. Although I already have a 4.5in angle grinder with a diamond cup, I was searching for something that would leave a smoother, flatter surface and would not put out clouds of harmful annoying dust. The Bosch 1773AK Concrete Surfacing Grinder is well designed and made from quality materials. It requires no skill to use. In fact, its boring. Just set it on top of a foundation wall or slab, apply a little pressure and drag it along at about 1/4in per second. The surface grinder has a dust removal port that mostly eliminates the dust clouds. An adapter (included) brings the diameter up to 1-1/4in and then another one on the vacuum hose (not included) allows connection to the 2-1/2in port on a Ridgid shop vac. Although the Bosch surface grinder functions correctly and does remove dust, I would call it strictly a surfacing tool rather than a grinder. Ironically, the equipment works best on surfaces that are already flat. This expensive, specialized tool leaves a flat, finished surface of exposed aggregate. It is for this specific task and does not replace the angle grinder. If I have to remove chunks, round corners or shape the material down to a somewhat flat surface, I go back to the angle grinder.
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Color: NA Verified Purchase
I purchased the Bosch surfacing grinder to perform some floor preparation for a tile job. The concrete slab was cracked at one of the induced cracking points. One side of the crack was raised about 1/8 inch higher than the other side. The crack was near the door, and the height difference made it impossible to set the new tile so that the new tile height matched the old tile height, outside the room.

I used the Bosch surfacing grinder to level the crack along a 3 foot length of the crack. It work flawlessly. In about 15 minutes, the leveling job was done. The tiles line up perfectly, now. The grinder was used with a shop vac, and there was virtually no dust, until the shop vac filter got plugged.

One of the previous reviewers mentioned a problem with the circuit breaker tripping when the grinder is used. I also experienced this problem. It occurred to me that the shop vac was operating on the same circuit as the grinder. The combined current load exceeded the circuit breaker rating. I switched the shop vac to an outlet on a separate breaker, using an extension cord. This fixed the breaker tripping problem. If you have high powered stereo gear, other appliances, or heavy lighting loads on the same breaker as the grinder, the breaker will likely trip. Make sure to put the grinder on its own lightly loaded circuit.

Over the years, I have purchased several other Bosch tools from Amazon.com. I find Amazon's service to be good, and I think very highly of Bosch's tools. Bosch's Bulldog hammer drill, router, jig saw, and 1/4 sheet sander all exceeded my expectations for quality, durability, and value. The Bulldog is excellent for broken tile and thin-set removal, by the way. You wouldn't want to tear up flooring for an entire house using this thing.
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Length: 0:54 Mins
This is an excellent tool. I am a contractor and I do foundation repairs. I just got this tool to replace my old one, and I was 100% satisfied with its performance. I install structural Carbon fiber foundation straps and we use such tools to smooth out rough block wall and remove anything to create a smooth clean surface for epoxy. Yesterday I did a big job and used the tool for the 1st time and I couldn't be more happy with the outcome... As you can see in the video there was not a speck of dust using this tool in a residential basement. For anyone who is in the market for a tool to do this type of work, I would strongly recommend this tool. Here is a small video of the tool in action.
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This reallly is a great tool. It grinds down concrete with little to no mess. This tool works very well for cleaning paint, thinset, drywall mud and splattered concrete off of slabs. It is also great for smoothing joints or cracks and for making minor slope adjustments in concrete to eliminate standing water. I am amazed at the number of uses I am finding for this tool!

I do have a few tips. Dewalt makes a grinding wheel that fits this machine, part number DW4774. It costs about half what the Bosch wheels costs and lasts more than twice as long. It is available at most Lowes (usually only one per store) for about $60. It is slightly smaller in diameter (4.5in vs. 5in) so it does not get as close to the edge of the shroud. You will also have to use a spacer on the grinder shaft towards the end of the DW4774's life (use one clamping nuts that come with the grinder).

The tool _must_ be on its own 20A branch circuit. Do not run your vacuum on the same branch circuit! I have had no trouble with breaker tripping, but the tool does peg my current meter at 18.5A.

I docked one star mostly due to price. There are a few other minor issues. There needs to be a way to secure the vacuum hose in place other than friction. You don't want the vacuum hose to come off, even for a second! A high-power, low-power switch to reduce current and prevent breaker tripping would be nice. I would love to see a wet/dry version of this tool. I would also like to see a larger version (may have to be 240VAC).
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