4-1/2" x 7/8" T29 Zirconia Flap Disc - 1000 pieces

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Product Specification

4-1/2" X 7/8" T29 ZIRCONIA FLAP DISC - 1000 PIECES

Built for fabrication shops, production environments, maintenance departments, and other high-volume users, these 4-1/2" x 7/8" T29 Zirconia Flap Discs deliver aggressive stock removal, dependable grinding performance, and controlled surface blending across a wide range of metalworking applications. Each disc is manufactured with premium European zirconia cloth that provides consistent abrasive grain distribution and reliable cutting performance.

The self-sharpening zirconia grain continually exposes fresh cutting edges as the disc wears, helping maintain an aggressive cut under higher grinding pressure and heat. The 15° T29 angled face is optimized for flat surfaces and bead welds, making these discs a versatile choice for weld removal, edge work, deburring, surface preparation, and general fabrication.

This bulk package contains 1,000 flap discs and is designed for operations that use flap discs consistently and want to maintain shop inventory while taking advantage of bulk pricing. Mixed-grit orders may be available; contact us before ordering if you would like to divide the quantity between grit options.

Product Specifications

Features

• Premium Zirconia Abrasive: Self-sharpening zirconia grain maintains strong cutting performance under the heat and pressure generated during metal grinding.
• European Zirconia Cloth: Manufactured with premium European abrasive cloth for consistent grain distribution and dependable performance.
• T29 Angled Profile: The 15° face provides efficient abrasive contact on flat surfaces and bead welds.
• Aggressive Stock Removal: Designed for weld grinding, edge work, deburring, and other material-removal applications.
• Grinding and Blending in One Disc: Layered abrasive flaps remove material while producing a more controlled finish than conventional grinding wheels.
• Continuous Fresh Abrasive: As the flaps wear, new zirconia grain is exposed to help maintain cutting performance throughout the life of the disc.
• Computer-Controlled Manufacturing: Produced on computer-controlled equipment and subjected to quality testing for consistency and dependable operation.
• Bulk Shop Packaging: 1,000-piece quantity is ideal for fabrication shops, manufacturers, maintenance departments, and other high-consumption users.

Applications & Performance

The layered flap construction continuously exposes fresh zirconia abrasive as the disc wears, providing dependable cutting action and a smoother transition between aggressive grinding and surface blending.

The T29 angled face is especially effective when grinding flat surfaces and bead welds because the 15° profile keeps the abrasive engaged with the workpiece.

Ideal applications include:

• Weld grinding and cleanup
• Stock removal
• Bead-weld grinding
• Surface blending
• Edge shaping
• Deburring
• Rust and scale removal
• Surface preparation
• General fabrication
• Maintenance and repair work

Suitable materials include:

• Carbon steel
• Stainless steel
• Cast iron
• Titanium
• Nickel alloys
• Wrought iron
• Copper
• Fiberglass
• Plastic
• Hard rubber
• Wood
• Stone

For curved, contoured, or irregular surfaces where a flatter face provides better contact and control, use a T27 flap disc.

Machine Compatibility

Designed for compatible 4-1/2" angle grinders that accept a 7/8".

Compatible examples include:

• Benchmark Abrasives BMT-AGBC4570 4-1/2" Angle Grinder (11,000 RPM)
• Makita® 9557PB / 9557PBX1
• DEWALT® DWE402
• Bosch® GWS10-45 (11,500 RPM)
• Metabo® WEPBA 17-125 Quick RT DS (10,000 RPM, North American version)

Use the proper grinding guard and approved flap-disc mounting hardware. Verify disc diameter, arbor hole, maximum no-load speed, flange setup, and guard configuration before operation.

Safety Tips

• Never exceed the maximum rated speed of 13,300 RPM.
• Inspect the flap disc before each use and do not use discs that are cracked, damaged, excessively worn, or otherwise compromised.
• Verify that the disc is properly seated and secured before starting the grinder.
• Keep all grinder guards installed and correctly positioned.
• Allow the grinder to reach operating speed before contacting the workpiece.
• Use controlled pressure and allow the abrasive to perform the cutting instead of forcing the disc into the material.
• Use only for dry grinding applications.
• Always wear appropriate PPE, including safety glasses or a face shield, hearing protection, respiratory protection when required, gloves, and other protection appropriate for the application.
• Secure the workpiece before grinding and keep bystanders away from the work area.