Product Specification
4-1/2” X 5/8”-11 THREADED ARROW TYPE DIAMOND GRINDING CUP WHEEL
Built for aggressive surface grinding, leveling, and stock removal, the Benchmark Abrasives 4-1/2” Arrow Type Diamond Grinding Cup Wheel is designed for concrete, granite, marble, masonry, and natural stone. Its arrow-style diamond segments create a concentrated grinding pattern for removing high spots, correcting uneven surfaces, and preparing hard mineral surfaces for coating, finishing, or additional surface work.
The 4-1/2” diameter provides a strong balance of grinding coverage and handheld control, while the 7 mm diamond segments provide a tall diamond-bearing wear section. A direct-thread 5/8"-11 UNC hub simplifies mounting on compatible grinders, making this wheel a practical choice for concrete preparation, construction, renovation, restoration, and stone work.
Product Specifications
| Specification |
Details |
| Diameter |
4-1/2" |
| Wheel Type |
Arrow Type Diamond Grinding Cup Wheel |
| Operation |
Surface Grinding |
| Diamond Segment Height |
7 mm |
| Arbor |
5/8"-11 UNC Threaded |
| Maximum RPM |
13,580 RPM |
| Quantity |
1 Wheel |
Features
- Arrow-style diamond segments for aggressive surface grinding
- Designed for leveling and stock removal on hard mineral surfaces
- 7 mm diamond segment height
- 4-1/2" diameter balances grinding coverage with handheld control
- Direct-thread 5/8"-11 UNC mounting
- Rated up to 13,580 RPM
- Suitable for concrete, granite, marble, masonry, and natural stone
- Useful for removing high spots and correcting uneven surfaces
- Designed specifically for surface grinding rather than cutting
- Well suited for concrete preparation, construction, renovation, and stone work
Applications & Performance
Designed for surface grinding and material removal on hard masonry and stone surfaces.
- Concrete surface leveling
- Removing high spots
- Smoothing uneven concrete
- Masonry surface preparation
- Granite grinding
- Marble grinding
- Natural stone surface preparation
- Edge and localized grinding
- Surface correction before coatings or finishing
- Construction and renovation work
The arrow-style segment arrangement concentrates the diamond grinding surfaces into an aggressive pattern, making this wheel well suited for productive stock removal and leveling applications.
Materials
- Concrete
- Granite
- Marble
- Masonry
- Natural Stone
Machine Compatibility
For use with 4-1/2” angle grinders.
Compatible examples include:
-
Benchmark Abrasives 4-1/2" Corded Angle Grinder (BMT-AGBC4570_1) — 11,000 RPM; 5/8"-11 threaded mounting with a suitable cup-wheel guard or dust shroud. For dry grinding when permitted by the wheel marking.
-
Makita® 9564CV Angle Grinder — 10,500 RPM maximum; 5/8"-11 threaded mounting with a compatible surface-grinding dust shroud. For dry grinding when permitted by the wheel marking.
Other models may also fit. Match the mounting, speed rating and required guard to your tool.
Safety Tips
- Never exceed the wheel’s maximum rated speed of 13,580 RPM.
- Inspect the diamond segments, steel body, and threaded hub before each use.
- Do not use a cracked, damaged, bent, or excessively worn cup wheel.
- Confirm the grinder uses the correct 5/8"-11 threaded spindle.
- Thread the cup wheel fully and securely onto the spindle according to the machine manufacturer’s instructions.
- Use a guard or dust shroud designed for diamond cup-wheel grinding.
- Maintain controlled contact with the work surface and avoid excessive pressure.
- Do not use this cup wheel as a cut-off blade.
- Use only the grinding method marked on the wheel and approved for the machine. Never add water to a dry-use grinder.
- Use appropriate eye, hearing, respiratory, hand, and other required personal protective equipment.
- Grinding concrete, masonry, granite, marble, and other silica-containing materials can generate respirable silica dust. Use appropriate water-delivery or dust-extraction controls.
