Product Specification
4-1/2" X 7/8" T27 CERAMIC FLAP DISC - 1 PIECE
Built for aggressive grinding on hard metals, this 4-1/2" T27 ceramic flap disc uses premium ceramic grain that continually fractures to expose sharp new cutting edges during use. That self-sharpening action helps ceramic cut fast, stay productive under pressure, and run cooler during demanding stock removal, weld cleanup, blending, and surface preparation.
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. Compared with zirconia, ceramic is the step-up choice when you need more aggressive cutting performance on harder metals and sustained grinding under heavier pressure.
Available in 36 through 120 grit, this disc gives fabricators a full working range from heavy stock removal through blending and finish refinement. The ceramic abrasive is supported by X-weight polycotton cloth and a fiberglass backing plate for the durability and control needed in demanding fabrication, maintenance, and repair work.
Quantity: 1 Piece
Product Specifications
| Specification | Details |
|---|---|
| Outer Diameter | 4-1/2" |
| Inner Diameter | 7/8" |
| Shape | T27 Flat Face |
| Density | Regular Density |
| Abrasive Grain | Ceramic |
| Available Grits | 36, 40, 60, 80, 120 |
| Abrasive Backing | X-weight polycotton cloth |
| Backing Plate | Fiberglass |
| Max RPM | 13,300 |
| Use | Dry Only |
Product Features
- Premium ceramic grain for aggressive stock removal on hard metals
- Self-sharpening grain fractures during use to continually expose fresh cutting edges
- Designed for strong cutting performance under heavier grinding pressure
- Ceramic construction helps reduce heat buildup during demanding grinding
- T27 flat face is well suited for shaped and non-flat surfaces
- Overlapping flap construction combines grinding, blending, and surface refinement
- X-weight polycotton cloth backing provides strong abrasive support
- Fiberglass backing plate supports demanding angle-grinder applications
- Available from aggressive 36 grit through finer 120 grit
Materials & Applications
Best For:
- Carbon steel
- Stainless steel
- Steel alloys
Additional Materials:
- Cast iron
- Titanium
- Nickel
- Wrought iron
- Super alloys
- Copper
- Brass
- Tin
Common Applications:
- Heavy stock removal
- Grinding and blending welds on shaped or non-flat surfaces
- Fence posts, gates, risers, tubing, and fabricated assemblies
- Weld cleanup
- 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 the 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.
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- 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.
Frequently Asked Questions
SHIPPING
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Standard FREE shipping is UPS Ground or USPS priority depending on size and weight. Most customers receive their order within 3-5 days from date of purchase. Faster shipping options available for additional charge. Free shipping not available on international orders. Free shipping will only be available to orders being delivered within the lower 48 states.
Refund
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