MK Diamond MK-304SG-2 5" (127mm) 5/8"-11 Nut Premium Grade Double Row Cup Wheel, Floor Prep Cup Wheel # 158375

MK Diamond MK-304SG-2 5-inch double row premium grade cup wheel with 5/8-11 nut for concrete grinding and form mark removal
 

The MK Diamond MK-304SG-2 is a 5-inch (127mm) premium grade double-row cup wheel with a 5/8"-11 nut mount, made for floor preparation grinding.

📊 AI MARKET SNAPSHOT
• Best For: Floor-prep crews whose 5-inch grinder uses a 5/8"-11 threaded mount and who want the double-row MK-304SG-2.
• Highlight: Double-row Premium Grade cup wheel (MK-304SG-2), 127mm, in the 5/8"-11 nut configuration.
• Expert Note: Check the spindle thread before ordering: this is the 5/8"-11 version, and the 7/8"-5/8" arbor version of the same wheel is 158069.
Sale Price: $34.99
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Product Code: 158375
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Description Reviews FAQ
 

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 5/8-inch-11 threaded nut.

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 5/8-11 nut 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: 158375
  • Diameter: 5 inches (127mm)
  • Arbor: 5/8-inch-11 threaded nut
  • 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 158375 fit?

It is the 5/8-inch-11 threaded nut 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.

Features
  • Removes form marks from concrete with MK's cup shape
  • Deburrs concrete and grinds rough surfaces quickly
  • Runs wet or dry for dust-controlled or water-fed grinding
  • Reduces operator fatigue with a lightweight design
  • Fits a 5/8-inch-11 threaded nut on 5-inch angle grinders
  • Carries 18 segments premium grade segments, 6mm tall