The MK Diamond MK-504SG-2 is a 4-inch supreme-grade turbo double-row diamond cup wheel for floor and surface preparation, with 5/8-11 nut mounting. MK Diamond designed it for quick de-burring and form mark removal, and the turbo segmented design is described as ideal for cleanup and finish work. Concrete finishers and restoration crews reach for it to knock down form lines, burrs and high spots before coating or polishing.
Use cases
- Form mark removal. Grind off form lines and ridges on poured concrete.
- De-burring. Knock down burrs and rough edges quickly.
- Cleanup and finish work. Blend high spots with the turbo segmented design.
- Surface prep before coating. Level a surface before a coating or polish step.
Specifications
- Diameter: 4-inch (102 mm)
- Model: MK-504SG-2
- Part number: 158689
- Mounting: 5/8-11 nut
- Configuration: Turbo segmented, double row
- Grade: Supreme Grade
- Segment height: 6 mm
Fit and compatibility
This 4-inch cup wheel mounts with 5/8-11 nut, so check that your grinder matches before ordering. It is the double-row version of the 504 turbo family. MK Diamond publishes sister cup wheels in other diameters and mountings under separate part numbers.
Getting the most from the cup wheel
Confirm that your grinder has the matching thread or arbor and that its maximum RPM is within the wheel rating, keep the guard in place, and let the segments cut with light, even pressure. Move the wheel steadily across the surface instead of pressing hard in one spot. Wear eye, hearing and respiratory protection, and follow the grinder maker and MK Diamond safety guidance.
Frequently asked questions
What is the MK-504SG-2 used for?
MK Diamond designed it for quick de-burring and form mark removal, with a turbo segmented design suited to cleanup and finish work.
What mounting does part 158689 use?
It uses 5/8-11 nut. Confirm that your grinder matches before you order.
What is the difference between single row and double row?
The MK-504CG-1 is a single-row turbo cup wheel and the MK-504SG-2 is a double-row turbo cup wheel. Both are Supreme Grade with a 6 mm segment height.
How tall are the segments?
The segment height is 6 mm.
About MK Diamond and your order
MK Diamond has built diamond blades, core bits and masonry saws for the construction and stone trades for generations. Discount Cleaning Products is an authorized dealer with US-based customer service, so you can confirm fitment with a real person before you order.
