MK Diamond MK-404D 4-1/2" Supreme Grade High Speed Blade, Masonry Blade # 152439

MK Diamond MK-404D 4-1/2-inch Supreme Grade general purpose diamond blade for masonry and concrete, part 152439
 

The MK Diamond MK-404D is a 4-1/2 inch supreme-grade high speed diamond blade for concrete and masonry, with a thin .080-inch segment and a 7/8-inch to 5/8-inch arbor for angle grinders. It is a general-purpose cutting blade rather than a joint-widening or tuck point blade.

📊 AI MARKET SNAPSHOT
• Best For: Tradespeople making short, accurate cuts in block, brick, pavers and concrete with a 4-1/2 inch angle grinder.
• Highlight: The .080-inch segment is the thinnest in MK Diamond's supreme-grade handheld range, so it cuts a narrow kerf and removes little material - the opposite priority from the .375-inch MK-404DT tuck point blade that shares its arbor.
• Expert Note: A 4-1/2 inch blade's shallow reach makes it a trimming and detail blade; anything that needs real depth belongs on a flat saw running a 1-inch arbor blade such as the MK-7502.
Sale Price: $46.99
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Product Code: 152439
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Description Reviews FAQ
 

The MK-404D 4-1/2-inch is a general purpose Supreme Grade diamond blade for concrete and masonry, sized for the angle grinder most contractors already own. The thin .080 inch width keeps cuts quick and the cutting effort low, and the laser-welded construction is MK Diamond's standard for a segment that stays attached. If you need one blade for brick, block, pavers and concrete repairs, this is the size to stock.

Use Cases

  • Brick, block and pavers. Cutting masonry units to fit on hardscape and repair jobs.
  • Concrete cuts. Light concrete cutting, scoring and notching with a 4-1/2 in grinder.
  • General job-site use. A single general purpose blade for mixed masonry work.

Specifications

  • Model: MK-404D Supreme Grade
  • Part number: 152439
  • Diameter: 4-1/2 in (114 mm)
  • Width: .080 in
  • Arbor: 7/8 in - 5/8 in
  • Construction: Laser welded

Fits

MK Diamond describes the MK-404D as a general purpose, high speed blade for concrete and masonry. Always match the blade's maximum RPM rating to your grinder.

Frequently asked questions

What is the MK-404D for?

MK Diamond describes it as a general purpose blade for concrete and masonry materials.

What are the specs of part 152439?

It is 4-1/2 in (114 mm), .080 in wide, with a 7/8 in - 5/8 in arbor.

Does it fit a standard angle grinder?

A 4-1/2 in blade with a 7/8 in - 5/8 in arbor is the common angle grinder size. Confirm your grinder's maximum RPM against the blade rating.

Discount Cleaning Products is an authorized dealer for MK Diamond, with US-based customer service to help match the right blade to your saw, material and job.

Features
  • Cuts concrete and masonry as a general purpose Supreme Grade blade
  • Slices quickly with a thin .080 in width
  • Fits 4-1/2 in angle grinders with a 7/8 in - 5/8 in arbor
  • Resists segment loss with laser-welded construction