Cutting asphalt for a utility trench, a patch box or a full-depth roadway repair punishes a blade in a way concrete does not. The MK Diamond MK-705W in 14-inch diameter with a .145 kerf is a premium-grade wet asphalt blade built for paving crews and municipal maintenance operators who are cutting abrasive pavement day after day and need the blade to last more than a shift.
Built for
- Saw utility trenches and patch boxes in asphalt roadway and parking lots
- Cut full-depth asphalt for pavement repair and removal
- Handle municipal and paving-contractor maintenance work on walk-behind saws
- Run wet on saws in the 8 to 20 hp class
Within MK's wet asphalt range the MK-705W sits above the standard-grade MK-700W and below the supreme-grade MK-710W, which is the practical middle ground for a crew that cuts asphalt regularly but does not need the top-tier blade. MK rates it for asphalt specifically, not for asphalt over concrete - if your pavement is an asphalt overlay sitting on a concrete base, the MK-615W or MK-625W is the correct blade and this one is not.
The .145 kerf is slightly heavier than a standard .125 blade. That extra body resists deflection in abrasive material, which keeps the cut tracking straight on long runs. MK builds this range with a 12mm segment height, taller than the 10mm on its green-concrete and asphalt-overlay blades, so there is more diamond to consume before the blade is finished.
Asphalt is softer than concrete but far more abrasive, and it goes viscous as it heats. That combination is what kills blades: the slurry running down the cut erodes the steel core just under the segments until the segments let go, a failure called undercutting. Running wet keeps the core and the bond cool and flushes that slurry out instead of letting it grind away at the blade. Two habits extend life more than anything else - do not bury the blade to the flange, and do not let it drop into the sub-base, where loose material wears segments fast.
Specifications
- Manufacturer: MK Diamond
- Model: MK-705W
- Part number: 150126
- Grade: Premium
- Material: Asphalt
- Diameter: 14 inches (356mm)
- Width (kerf): .145 inches
- Arbor: 1 inch
- Segment height: 12mm
- Horsepower range: 8 - 20 hp
- Bond: Laser welded
- Cutting method: Wet only
Frequently asked questions
Can I use this blade on asphalt over concrete?
No. MK rates the MK-705W for asphalt and does not recommend it for asphalt over concrete. For composite pavement where an asphalt overlay sits on a concrete base, use the MK-615W or MK-625W, which MK rates as best for that application.
How does the MK-705W compare to the MK-700W and MK-710W?
They are the same family at three performance levels for asphalt. MK rates the MK-700W as good, the MK-705W as better and the MK-710W as best. The MK-705W is the middle choice for crews cutting asphalt regularly.
Does it have to be run wet?
Yes. It is a wet-cutting blade. Water cools the core and bond and flushes slurry out of the cut, which is what prevents undercutting - slurry eroding the core beneath the segments until they break away.
Will it fit my saw?
It has a 1-inch arbor, standard on walk-behind concrete and asphalt saws, and MK rates the range for 8 to 20 hp. Confirm your saw accepts a 14-inch blade before ordering.
Discount Cleaning Products is an authorized MK Diamond dealer. Our US-based team can help you match blade diameter, kerf width and bond to the saw and the material you are actually cutting, so you are not guessing at a part number. If you are not sure which blade in the range fits your saw, contact us with your saw model and horsepower and we will point you to the right one.
