Product Specification
4-1/2" X 7/8" T27 ALUMINUM OXIDE FLAP DISC - 10 PACK
Built for everyday grinding, blending, deburring, and surface preparation, these 4-1/2" T27 aluminum oxide flap discs deliver dependable performance at an economical price point. The overlapping abrasive flaps continually expose fresh aluminum oxide grain as they wear, allowing each disc to remove material while progressively blending the work surface.
The flat T27 profile is especially well suited for shaped and non-flat workpieces such as fence posts, gates, risers, tubing, edges, and fabricated assemblies. Available in 40 through 120 grit, this disc can handle everything from general stock removal and weld cleanup to blending and finer surface preparation without switching to a completely different abrasive format.
Aluminum oxide is a proven general-purpose abrasive for steel, cast iron, and a wide range of fabrication materials, making this 10-pack a practical choice for shops that need reliable flap discs for routine grinding work. For more aggressive stock removal and heavier-duty metal grinding, step up to Benchmark Abrasives Zirconia Flap Discs.
Quantity: 10 Pieces
Product Specifications
| Specification |
Details |
| Outer Diameter |
4-1/2" |
| Inner Diameter |
7/8" |
| Shape |
T27 Flat Face |
| Density |
Regular Density |
| Abrasive Grain |
Aluminum Oxide |
| Available Grits |
40, 60, 80, 120 |
| Abrasive Backing |
X-weight polycotton cloth |
| Max RPM |
13,300 |
| Use |
Dry Only |
Product Features
- Economical aluminum oxide abrasive for general-purpose grinding and finishing
- Overlapping flap construction continually exposes fresh abrasive as the disc wears
- T27 flat face is well suited for shaped and non-flat surfaces
- Regular-density construction provides controlled grinding and blending
- Available in 40 through 120 grit for stock removal through finer surface preparation
- X-weight polycotton cloth backing provides strong abrasive support
- One disc can grind, blend, deburr, and progressively refine the work surface
- 10-pack is ideal for fabrication shops, maintenance work, and routine grinding applications
Materials & Applications
Best For:
Additional Materials:
- Stainless steel
- Titanium
- Nickel
- Wrought iron
- Copper
- Brass
- Tin
- Fiberglass
- Plastic
- Hard rubber
- Wood
Common Applications:
- Grinding and blending shaped or non-flat surfaces
- Fence posts, gates, risers, tubing, and fabricated assemblies
- Light to moderate stock removal
- Weld cleanup and blending
- Deburring and edge cleanup
- Removing surface imperfections
- Surface preparation
- General fabrication, maintenance, and repair work
Machine Compatibility
Designed for compatible 4-1/2" to 5" angle grinders using a 7/8" mounting system.
For a Benchmark option, use the Benchmark Abrasives 4-1/2" corded angle grinder, which supports compatible 7/8" bore accessories.
Always verify that the grinder is approved for the disc diameter and mounting style, that the proper guard and mounting hardware are installed, and that the grinder's operating speed does not exceed the flap disc's 13,300 RPM maximum.
Safety Tips
- Inspect each flap disc before use and do not use a damaged disc.
- Never exceed the maximum rated speed of 13,300 RPM.
- Use the proper grinder guard and compatible mounting hardware.
-
- Secure the workpiece and maintain control of the grinder throughout use.
- Use only on grinders approved for the disc diameter and mounting configuration.
- Dry use only.
