Product Specification
7” VACUUM BRAZED DEMOLITION BLADE
Built for larger mixed-material demolition jobs, the Benchmark Abrasives 7” Vacuum Brazed Demolition Blade is designed for tear-out, remodeling, renovation, and repair work where the cut may move through several different construction materials. Its vacuum-brazed diamond cutting surface provides an exposed abrasive edge for aggressive material removal, helping reduce downtime from repeatedly switching between dedicated blades.
The larger 7” diameter provides increased cutting capacity for tougher demolition work while maintaining the versatility of the vacuum-brazed design. Intended for wet or dry cutting and rated up to 8,700 RPM, this blade supports applications involving wood, plastics, concrete, masonry, and metals when the exact machine is approved for both the accessory and material being cut.
Product Specifications
| Specification |
Details |
| Diameter |
7" |
| Blade Type |
Vacuum Brazed Demolition Blade |
| Maximum RPM |
8,700 RPM |
| Cutting Method |
Wet or Dry |
| Quantity |
1 Blade |
Features
- Vacuum-brazed diamond construction for aggressive demolition cutting
- Designed for mixed-material cutting applications
- 7" diameter provides increased cutting capacity and reach
- Exposed diamond abrasive provides efficient cutting action
- Suitable for demolition, remodeling, renovation, and repair work
- Designed to reduce blade changes when moving between supported materials
- Wet or dry cutting capability for greater application flexibility
- Rated up to 8,700 RPM
- Purpose-built for cutting rather than side grinding
Applications & Performance
Designed for demanding mixed-material demolition where the cutting task may move between different construction materials.
- Demolition and tear-out work
- Remodeling and renovation
- General repair applications
- Mixed-material construction cutting
- Cutting through assemblies containing different supported materials
- Concrete and masonry cutting
- Metal cutting
- Plastic and pipe cutting
- Wood cutting
- Larger-format trimming and removal work
The 7” diameter provides more cutting reach than smaller demolition blades, making it better suited for larger material sections and more demanding tear-out applications.
Machine restrictions always take priority over the blade’s material capability. Verify that the exact tool permits the blade type and the specific material being cut.
Materials
Designed for the following materials, when permitted by the machine:
- Wood
- PVC
- HDPE
- Plastics
- Concrete
- Masonry
- Ferrous Metals
- Nonferrous Metals
Machine Compatibility
For use with 7” angle grinders and masonry-cutting equipment.
Compatible examples include:
- Makita® GA7021 — dry cutting with the 122914-4 cut-off guard. Confirm this blade has the required 7/8" mounting.
Other models may also fit. Match the mounting, speed rating and required guard to your tool.
Safety Tips
- Never exceed the blade’s maximum rated speed of 8,700 RPM.
- Verify the exact arbor and mounting configuration from the current blade before installation.
- Inspect the blade, mounting opening, and flanges before each use. Do not use a damaged, bent, or distorted blade.
- Use the cutting guard specified by the machine manufacturer.
- Never enlarge the arbor opening or use improvised or loose reducing bushings.
- Confirm that the machine permits both the blade type and the material being cut.
- Only cut dry when both the blade and machine permit dry operation.
- Do not side-load or grind with the sides of the blade unless the exact accessory is specifically approved for that operation.
- Use appropriate eye, hearing, respiratory, hand, and other required personal protective equipment.
- Concrete and masonry cutting can generate respirable silica dust. Use task-appropriate dust-extraction or water-delivery controls.
- Cutting metal can create sparks and hot debris. Keep combustible materials clear of the work area.
