The MK Diamond MK-304SG-2 is a 5-inch premium grade double row cup wheel for angle grinders, made for the surface prep jobs that come up on every concrete and stone site. MK describes the cup shape as one that allows superior form mark removal, and the wheel also handles concrete deburring and rough-surface grinding. This version fits a 7/8-inch to 5/8-inch arbor.
Built for
- Form mark removal: grind down the ridges and seams left by concrete forms on walls, footings and slabs.
- Concrete deburring: knock down high spots, burrs and lips along saw cuts, joints and patches.
- Rough-surface grinding: level and open up rough concrete or stone before coatings, repairs or polishing steps.
- Stone and tile shops: quick edge and surface grinding on stone with a handheld grinder.
Wet or dry, and built to stay light
MK Diamond lists this wheel for wet or dry grinding, so you can pair it with a dust shroud and vacuum for dry work or use water where the job allows. It has a lightweight design to reduce operator fatigue, which matters when you are holding a grinder overhead or working across a long wall. The double-row layout carries 18 segments on the 5-inch size, each with a 6mm segment height.
Match the arbor to your grinder before you order. This listing is the 7/8-5/8 arbor version; MK also lists the same wheel with the other arbor style under a different item number. Use a guard that suits the wheel, wear eye, hearing and respiratory protection, and follow the grinder and wheel safety instructions.
Specifications
- Manufacturer: MK Diamond
- Model: MK-304SG-2, premium grade, double row
- Item number: 158069
- Diameter: 5 inches (127mm)
- Arbor: 7/8-inch to 5/8-inch arbor
- Segments: 18 segments
- Segment height: 6mm
- Use: wet or dry grinding
Frequently asked questions
What is the MK-304SG-2 cup wheel used for?
MK Diamond lists it for form mark removal, concrete deburring and rough-surface grinding on concrete and stone.
Can I use it wet or dry?
Yes. MK Diamond states the wheel can be used wet or dry.
What arbor does item 158069 fit?
It is the 7/8-inch to 5/8-inch arbor version. MK sells the same 5-inch wheel with the alternate arbor under a different item number, so check your grinder spindle first.
How many segments does it have?
The 5-inch double row wheel has 18 segments, each 6mm tall.
Discount Cleaning Products is an authorized MK Diamond dealer with US-based customer service. If you are unsure which cup wheel and arbor suit your grinder, contact our team before you order.
