4-1/2" X 7/8" UNITIZED FIBERGLASS BACKED DISC T27 2S FINE
Bring stainless-steel surfaces closer to a finished look with the Benchmark Abrasives 4-1/2" x 7/8" unitized fiberglass backed disc. Its 2S Fine silicon carbide abrasive and bonded non-woven construction deliver controlled, uniform finishing after heavier grinding or stock removal.
Its 4-1/2" diameter provides efficient coverage on larger surfaces, while the flat Type 27 profile and fiberglass-reinforced backing provide support during finishing. The open non-woven construction helps reduce loading and allows debris to clear during use, making this disc a strong choice for final surface refinement and preparation before polishing.
Quantity: 1 Disc
Product Specifications
Specification
Details
Disc Diameter
4-1/2"
Center Hole
7/8"
Disc Style
Type 27 – Flat Face
Abrasive Mineral
Silicon Carbide
Grade
2S Fine
Construction
Compressed and Bonded Non-Woven Nylon
Backing
Fiberglass Reinforced
Maximum RPM
13,300
Quantity
1 Disc
Features & Benefits
2S Fine silicon carbide for controlled fine finishing and surface refinement
Produces a fine, uniform finish, particularly on stainless steel
Unitized non-woven construction conforms during finishing while maintaining support
Open structure helps reduce loading and release debris
Fiberglass-reinforced backing supports the larger 4-1/2" disc
Type 27 flat profile provides broad surface contact
Useful as a finishing step before high-gloss polishing when appropriate for the workpiece
Applications
Ideal for fine surface finishing and preparation on:
Stainless steel
Steel
Cast iron
Titanium
Nickel
Wrought iron
Copper
Aluminum
Fiberglass
Plastic
Hard rubber
Wood
Stone
This fine-grade unitized disc is intended primarily for surface refinement and finishing, not heavy weld removal, aggressive grinding, or cutting.
Finishing Performance
The 2S Fine grade is designed for light-pressure finishing where a controlled, uniform surface is more important than aggressive material removal. It is particularly effective for refining stainless-steel surfaces after heavier abrasive steps.
Use this disc after weld leveling or major scratch removal to refine the surface before polishing. The final finish depends on the material, starting condition, and polishing steps that follow.
Use a 4-1/2" angle grinder that accepts a 7/8" unthreaded Type 27 disc and is rated at no more than 13,300 RPM. Match the flange, locknut, guard, and disc clearance to the grinder instructions.
Keep all required machine guards properly installed.
Never exceed the disc's maximum rated speed of 13,300 RPM.
Inspect the disc before use and do not use a damaged accessory.
Confirm that the disc is properly seated and secured using the machine manufacturer's approved mounting components.
Allow the tool to reach operating speed before contacting the workpiece.
Use controlled pressure; excessive force is unnecessary for fine unitized finishing.
Follow all grinder and accessory manufacturer operating and safety instructions.
Frequently Asked Questions
2S Fine identifies this as a low-density, fine-grade silicon carbide unitized abrasive. It describes the unitized construction and finishing grade rather than a conventional coated-abrasive grit number.
2S Fine is a finishing grade, not a numbered sandpaper grit. Choose it for controlled fine finishing and surface refinement before polishing.
Yes. Stainless-steel finishing is one of its primary applications. The fine unitized construction is designed to produce a controlled, uniform surface and can prepare the workpiece for a subsequent polishing step.
No. This is a fine finishing disc. Heavy weld removal and substantial stock removal should be completed with a more aggressive abrasive before using the 2S Fine disc for refinement.
No. The disc has a 7/8" unthreaded center hole. A grinder's 5/8"-11 spindle thread and the disc's 7/8" center hole refer to different parts of the mounting system. Use the proper flange, locknut, guard, and mounting arrangement for the grinder and accessory.
The Benchmark 4-1/2" Corded Angle Grinder (BMT-AGBC4570_1) runs at 11,000 RPM. Other models with matching published size and speed specifications include the Makita 9564CV (up to 10,500 RPM) and DEWALT DWE402 (11,000 RPM). Use only a grinder-approved flange, locknut, and guard arrangement that fits this 7/8" center-hole Type 27 disc.
The published maximum speed is 13,300 RPM. This is a maximum safety limit, not a recommended finishing speed.
4-1/2" X 7/8" UNITIZED FIBERGLASS BACKED DISC T27 2S FINE
Bring stainless-steel surfaces closer to a finished look with the Benchmark Abrasives 4-1/2" x 7/8" unitized fiberglass backed disc. Its 2S Fine silicon carbide abrasive and bonded non-woven construction deliver controlled, uniform finishing after heavier grinding or stock removal.
Its 4-1/2" diameter provides efficient coverage on larger surfaces, while the flat Type 27 profile and fiberglass-reinforced backing provide support during finishing. The open non-woven construction helps reduce loading and allows debris to clear during use, making this disc a strong choice for final surface refinement and preparation before polishing.
Quantity: 1 Disc
Product Specifications
Specification
Details
Disc Diameter
4-1/2"
Center Hole
7/8"
Disc Style
Type 27 – Flat Face
Abrasive Mineral
Silicon Carbide
Grade
2S Fine
Construction
Compressed and Bonded Non-Woven Nylon
Backing
Fiberglass Reinforced
Maximum RPM
13,300
Quantity
1 Disc
Features & Benefits
2S Fine silicon carbide for controlled fine finishing and surface refinement
Produces a fine, uniform finish, particularly on stainless steel
Unitized non-woven construction conforms during finishing while maintaining support
Open structure helps reduce loading and release debris
Fiberglass-reinforced backing supports the larger 4-1/2" disc
Type 27 flat profile provides broad surface contact
Useful as a finishing step before high-gloss polishing when appropriate for the workpiece
Applications
Ideal for fine surface finishing and preparation on:
Stainless steel
Steel
Cast iron
Titanium
Nickel
Wrought iron
Copper
Aluminum
Fiberglass
Plastic
Hard rubber
Wood
Stone
This fine-grade unitized disc is intended primarily for surface refinement and finishing, not heavy weld removal, aggressive grinding, or cutting.
Finishing Performance
The 2S Fine grade is designed for light-pressure finishing where a controlled, uniform surface is more important than aggressive material removal. It is particularly effective for refining stainless-steel surfaces after heavier abrasive steps.
Use this disc after weld leveling or major scratch removal to refine the surface before polishing. The final finish depends on the material, starting condition, and polishing steps that follow.
Use a 4-1/2" angle grinder that accepts a 7/8" unthreaded Type 27 disc and is rated at no more than 13,300 RPM. Match the flange, locknut, guard, and disc clearance to the grinder instructions.
Keep all required machine guards properly installed.
Never exceed the disc's maximum rated speed of 13,300 RPM.
Inspect the disc before use and do not use a damaged accessory.
Confirm that the disc is properly seated and secured using the machine manufacturer's approved mounting components.
Allow the tool to reach operating speed before contacting the workpiece.
Use controlled pressure; excessive force is unnecessary for fine unitized finishing.
Follow all grinder and accessory manufacturer operating and safety instructions.
Frequently Asked Questions
2S Fine identifies this as a low-density, fine-grade silicon carbide unitized abrasive. It describes the unitized construction and finishing grade rather than a conventional coated-abrasive grit number.
2S Fine is a finishing grade, not a numbered sandpaper grit. Choose it for controlled fine finishing and surface refinement before polishing.
Yes. Stainless-steel finishing is one of its primary applications. The fine unitized construction is designed to produce a controlled, uniform surface and can prepare the workpiece for a subsequent polishing step.
No. This is a fine finishing disc. Heavy weld removal and substantial stock removal should be completed with a more aggressive abrasive before using the 2S Fine disc for refinement.
No. The disc has a 7/8" unthreaded center hole. A grinder's 5/8"-11 spindle thread and the disc's 7/8" center hole refer to different parts of the mounting system. Use the proper flange, locknut, guard, and mounting arrangement for the grinder and accessory.
The Benchmark 4-1/2" Corded Angle Grinder (BMT-AGBC4570_1) runs at 11,000 RPM. Other models with matching published size and speed specifications include the Makita 9564CV (up to 10,500 RPM) and DEWALT DWE402 (11,000 RPM). Use only a grinder-approved flange, locknut, and guard arrangement that fits this 7/8" center-hole Type 27 disc.
The published maximum speed is 13,300 RPM. This is a maximum safety limit, not a recommended finishing speed.
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