Product Specification
4-1/2” VACUUM BRAZED DEMOLITION BLADE
Built for aggressive mixed-material demolition cutting, the Benchmark Abrasives 4-1/2” Vacuum Brazed Demolition Blade is designed for jobs where contractors may encounter several different materials during tear-out, remodeling, repair, and renovation work. Its vacuum-brazed diamond cutting surface provides an exposed abrasive edge for fast material removal while reducing the need to constantly switch between dedicated blades as the job changes.
The 4-1/2” diameter offers a strong balance of cutting capacity, control, and versatility for compatible handheld equipment. Designed for wet or dry cutting and rated up to 13,580 RPM, this demolition blade is intended for applications involving wood, plastics, concrete, masonry, and metals when the exact machine is also approved for the blade type and material being cut.
Product Specifications
| Specification |
Details |
| Diameter |
4-1/2" |
| Blade Type |
Vacuum Brazed Demolition Blade |
| Arbor |
7/8" / 5/8" |
| Maximum RPM |
13,580 RPM |
| Cutting Method |
Wet or Dry |
| Quantity |
1 Blade |
Features
- Vacuum-brazed diamond construction for aggressive demolition cutting
- Designed for mixed-material cutting applications
- 4-1/2" diameter balances cutting capacity and maneuverability
- 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
- 7/8" / 5/8" arbor configuration
- Wet or dry cutting capability for greater application flexibility
- Rated up to 13,580 RPM
- Purpose-built for cutting rather than side grinding
Applications & Performance
Designed for 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
- Trimming and removal work
- Concrete and masonry cutting
- Metal cutting
- Plastic and pipe cutting
- Wood cutting
The vacuum-brazed cutting surface makes this blade particularly useful when a demolition job involves multiple materials and repeatedly changing blades would slow the work.
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 4-1/2” angle grinders and cut-off tools.
Compatible examples include:
- Benchmark Abrasives 4-1/2" Corded Angle Grinder (BMT-AGBC4570_1) — 11,000 RPM; dry cutting with 7/8" mounting and the appropriate diamond cutting guard.
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 13,580 RPM.
- Confirm the 7/8" / 5/8" arbor configuration and correct flange arrangement before installation.
- Inspect the blade, arbor opening, and mounting hardware 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.
