Saw Blades For Heavy Jobs
When it comes to cutting heavy asphalt, stone, and hard masonry, the standard steel-tooth saw blade won’t cut it—literally. These materials require diamond blades, where synthetic diamond grits are embedded into a metal matrix (the segment) on the outer edge of the blade.
Here is a breakdown of the specific blades used for these demanding materials:
Roadhog by Smith
Asphalt and Green Concrete Blades
Asphalt is highly abrasive. While it is softer than stone, the “sandiness” of the material acts like sandpaper, quickly wearing down the metal bond that holds the diamonds in place.
- The Bond: These blades use a hard metal bond. The metal must be tough enough to resist the constant scouring of sand and grit.
- Undercut Protection: Look for “u-shaped” or slanted segments. Because asphalt is so abrasive, the slurry can wear away the steel core of the blade where it meets the segment. Protective inserts prevent the segments from snapping off.
- Application: Best for asphalt, green concrete, and asphalt over concrete.
Patriot by Smith
Stone and Hard Material Blades
Natural stone (like granite or quartz) and reinforced concrete are incredibly hard. The challenge here is not abrasion, but the sheer density of the material.
- The Bond: These use a soft metal bond. As the diamonds become dull from cutting hard stone, the soft metal wears away quickly to expose a fresh, sharp layer of diamonds.
- Segment Style: Often features “turbo” rims (serrated) for faster cooling and dust removal, or standard segmented rims for the most aggressive cutting.
- Application: Granite, hard brick, pavers, and heavily reinforced concrete (rebar).
Comparison of Blade Types
Feature | Asphalt / Abrasive | Hard Stone / Reinforced Concrete |
|---|---|---|
Bond Hardness | Hard (resists wear) | Soft (wears to reveal diamonds) |
Segment Type | Segmented with undercut protection | Turbo or Segmented |
Primary Goal | Longevity against grit | Cutting speed through density |
Cooling | High airflow/water requirement | High water requirement (usually) |
Husqvarna Cutting Saws Instock
The Husqvarna K 970 is a heavy-duty, gasoline-powered masonry saw designed for the most demanding cutting jobs. Renowned for its durability and high power-to-weight ratio, it is a staple on professional jobsites for cutting everything from granite and concrete to asphalt and metal.
Key Features & Performance
X-Torq® Engine: This engine technology reduces emissions by up to 75% and increases fuel efficiency by 20%, providing high torque across a wide rpm range.
Active Air Filtration™: One of the most efficient air filtration systems on the market, allowing for nearly a year of operation (depending on usage) without a filter change.
DuraStarter™: A dust-sealed starter unit with a durable starter cord that significantly reduces the risk of downtime and increases the lifespan of the machine.
SmartCarb™: Built-in automatic filter compensation maintains high power and lowers fuel consumption even as the filter becomes clogged.
A Professionals Machine
Why Professionals Choose the K 970
”The K 970 is the workhorse of the hardscape industry. It’s balanced enough for precision cuts on granite steps but rugged enough to handle hours of asphalt trenching.”
Ergonomic Design: The semi-automatic SmartEdge belt tensioner and low vibration levels reduce operator fatigue during long shifts.
Easy Start: Features a decompression valve and a primed carburetor to ensure the saw starts quickly every time.
Versatility: The reversible cutting arm allows for cutting close to walls or ground level.
Whether you are performing roadwork, installing large-scale hardscapes, or engaging in demolition, the Husqvarna K 970 delivers the reliability needed to keep the project on schedule.