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Model#: MKDN166859

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Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
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New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

MK Diamond SDG-7 115V 15 Amp 7 in. Walk Behind Surface Grinder

  • MK Diamond SDG-7 115V 15 Amp 7 in. Walk Behind Surface Grinder
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Perfect for smaller jobs, the MK-SDG-7 Walk Behind Surface Grinder is designed to grind concrete to a smooth finish and provide optimal dust control during operation. Utilizing diamond cup wheels, contractors can use the MK-SDG-7 for grinding, cleaning, and leveling concrete, masonry or mortar.
  • Constructed with sturdy heavy gauge steel for maximum durability
  • MK-IXL vacuum shroud provides maximum dust extraction and control during operation
  • Vacuum shroud accommodates diamond cup wheels up to 7 in. diameter
  • Easily attaches to traditional shop vacs to help reduce the risk of respiratory problems during use
  • Adjustable handlebar height for optimal control and comfort
  • SDG-7 115V 15 Amp 7 in. Walk Behind Surface Grinder - 166859
  • MK-IXL Full Vacuum Shroud
  • 7 in. Cup Wheel
Compliance and Restrictions
warning: Cancer --


Length: 34.6 in.
Width: 17.5 in.
Height: 32 in.
Weight: 44 lbs.
AC Voltage: 115V
Amperage: 15
RPM: 3,500
Spindle: 5/8 x 11
Wheel Diameter: 7 in.



1.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (1)
No, I would not recommend this to a friend (1)
Not Durable (1)
Lack of Power (1)
No, I would not recommend this to a friend
Not Durable
Terrible product
We got the machine up and running, did a few test patches, took a break to then begin to dive into the project. Upon second startup, the machine SPARKED out of the switch box causing the machine to trip the circuits and stop running. Called to get some help, was told to take to certified repair shops. The only shop that doesn't automatically send it back to mk for repairs had a 3 week wait. Do yourself a favor and don't buy this product. 2 flips of the switch and nothing works.
June 28, 2018
8 months ago
Describe Yourself:
Avid Do-it-Yourselfer
Yes, I would recommend this to a friend
Lack of Power
To light can’t control movement cuts into concrete
May 9, 2018
10 months ago
Describe Yourself:

Questions & Answers

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Browse 5 questions Browse 5 questions and 2 answers
Is it better to have floor wet or dry?
Sodapop on Dec 17, 2017
How close to a wall will this grider able to get?
Kevin on Jun 20, 2016
BEST ANSWER: An educated guess would be within 2-5 inches. For the exact distance, please contact MK diamond directly at (800) 421-5830
Do you have a location that we can pick this up from
Josh on May 25, 2016
BEST ANSWER: This surface grinder is a vendor shipped item that is not in our warehouse in Georgia.
Where i can get one?
A shopper on Feb 13, 2018
Do you have dustless vac also and any financing?
George Q on Feb 6, 2018