The MK Diamond MK-625W 26" Supreme Grade Blade for Asphalt Over Concrete is engineered specifically for composite pavement cuts, where a layer of asphalt sits over a concrete base. It is a different animal from MK's straight-asphalt MK-705W and MK-710W lines, which are optimized for asphalt alone.
Built for composite pavement, not straight asphalt
Asphalt-over-concrete cuts ask a lot of a blade: soft, heat-sensitive asphalt on top and hard, abrasive concrete underneath, in the same pass. The MK-625W's 12mm segments and wet-cutting design are matched to that combination. Typical uses include:
- Utility and trenching cuts through composite asphalt-over-concrete roads and lots
- Municipal and highway repair work on pavement built up over a concrete base
- Pavement patches where the cut passes through both material layers
- Production cutting for contractors who regularly hit composite pavement structures
Specifications
- Diameter: 26 inch
- Width: .187 inch
- Arbor: 1 inch
- Grade: Supreme
- Segment height: 12mm
- Recommended saw power: 8-20 hp
- Cutting method: Wet cutting only
Frequently asked questions
Why can't I just use a regular asphalt blade for asphalt over concrete?
A composite asphalt-over-concrete cut asks a blade to cut two very different materials in the same pass - soft, heat-sensitive asphalt on top and hard, abrasive concrete underneath. The MK-625W is engineered for that combination; a straight asphalt blade like the MK-705W or MK-710W is optimized for asphalt alone and wears faster or performs less predictably once it reaches the concrete layer.
Is the MK-625W a wet or dry cutting blade?
Wet. Like MK Diamond's other W-series asphalt blades, it needs a steady water flow to keep the segments cool and clear cutting debris, especially once the cut reaches the concrete layer beneath the asphalt.
What size saw does the 26-inch MK-625W fit?
A walk-behind flat saw sized for a 26 inch blade and rated in the blade's 8-20 hp range.
What are the full blade specifications?
26 inch diameter, .187 inch width, 1 inch arbor, 12mm segment height, rated for 8-20 hp saws.
What jobs call for an asphalt-over-concrete blade specifically?
Utility cuts, trenching, and pavement repairs on roads or lots where asphalt has been laid over an existing concrete base or composite pavement structure - common in municipal and highway repair work.
Discount Cleaning Products is an authorized MK Diamond dealer with US-based customer service for help choosing the right blade for your saw and application.
