Matching diamond grit to concrete hardness is one of the most common mistakes flooring contractors make on a coating removal or surface prep job — too aggressive a bond wears out fast on soft concrete, too soft a bond glazes over on hard concrete. The EDCO QC1B-MC-0120 is a 120-grit single diamond grinding dot engineered specifically for medium-hardness concrete, giving contractors the right bond for the most commonly encountered slab hardness on commercial and residential jobs.
Built For
- Coating and mastic removal on medium-hardness concrete slabs
- Surface prep before epoxy, polyurea, or overlay installation
- Concrete polishing contractors stepping through a grit progression
- EDCO quick-change grinder owners replacing worn tooling
Running the wrong diamond bond on the wrong concrete hardness burns through tooling cost fast — matching a 120-grit medium-concrete dot to the correct slab keeps material removal rates consistent and extends the life of the diamond segments.
Specifications
EDCO Quick Change Single Diamond Dots Magnetic backing for use on both 7" and 10" Quick-Change Multi-Accessory Discs.
SINGLE Dyma-Dots
Ideal for:- Aggressively Grinding Concrete and Removing Thick Epoxies, Weather-Proofing Membrane and Other Coverings.
- Remove concrete and create a level surface without gouging.
- Concrete Surface Profile (CSP) Rating: 2
- Tooling Classification: Omni-Directional
For use on
- Magna-Trap Floor Grinders
- Single or Dual-Disc ModelsMagna-Trap
- Turbo Grinders, 7", 9", 10" Models
- Classic-Style Grinders retrofitted with Magna-Trap Multi-Tooling Disc
Frequently Asked Questions
How do I know if my concrete is medium hardness?
Concrete hardness is typically assessed with a scratch test or a Mohs hardness comparison chart, and contractors often confirm it against the results of the first pass on the job. If a bond wears too fast or glazes quickly, it may indicate a hardness mismatch.
What is the difference between single and double diamond grinding dots?
Single diamond dots have one row of diamond segments, while double diamond dots have two, generally offering a different balance of aggressiveness and tool life depending on the job.
What grinder systems is the QC1B-MC-0120 compatible with?
This grinding dot is built for EDCO's quick-change (QC) tooling system, designed for fast, tool-free swaps on compatible EDCO floor grinders.
How many dots come in a set?
The QC1B-MC-0120 is sold as a 3-pack set.
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