Bullard 36724 Flap Disc Type 29 7 Inch 40 Grit Zirconia

Product Description

The BULLARD 36724 is a zirconia flap disc designed for aggressive metal grinding and finishing applications. Built to a Type 29 standard profile, the disc seats at an angle that concentrates cutting pressure on the workpiece, allowing faster stock removal compared to flat Type 27 geometry. The 7-inch diameter disc mounts to a 7/8-inch arbor and is rated to a maximum of 8,500 RPM. At 40 grit, it is suited for heavy material removal, weld blending, and surface preparation on ferrous and non-ferrous metals. Abrasive fabricators and metal trades rely on zirconia grain for its self-sharpening characteristics, which extend disc life under sustained load.

This flap disc is used in metal fabrication shops, structural steel work, and general welding environments where grinding and surface conditioning are routine tasks. The Type 29 angled profile makes it particularly effective on flat surfaces and for feathering welds flush with base material. It is sold in a box quantity of 10 discs, making it practical for shop stock. Suitable for use with standard 7-inch angle grinders commonly found in fabrication and maintenance settings.

Key Features

• Zirconia abrasive grain provides self-sharpening performance and extended disc life under load
• Type 29 standard profile concentrates cutting force for faster stock removal on flat surfaces
• 40 grit rating suited for heavy grinding, weld blending, and aggressive surface preparation
• 7-inch diameter with 7/8-inch arbor fits standard angle grinders
• 8,500 RPM maximum speed rating for safe operation on compatible grinders
• Box quantity of 10 discs supports shop stocking and production use

Compatibility

Designed for use with 7-inch angle grinders equipped with a 7/8-inch arbor and a no-load speed rating at or below 8,500 RPM. Intended for grinding and finishing operations on metal substrates.

Installation Notes

Flap discs must be installed and replaced by personnel familiar with angle grinder safety procedures. Confirm the grinder's rated no-load speed does not exceed the disc's 8,500 RPM maximum before mounting. Power down and disconnect the grinder from its power source before changing discs. Inspect the disc for damage before each use and discard any disc showing cracks, delamination, or excessive wear; never use a damaged abrasive disc.

Technical Specifications

• Abrasive Type: Zirconia
• Disc Profile: Type 29 Standard Profile
• Diameter: 7 inches
• Arbor Size: 7/8 inches
• Grit: 40
• Maximum RPM: 8,500 RPM
• Application: Metal Grinding and Finishing
• Box Quantity: 10
• Unit of Measure: Each

Standard Information

• Brand: BULLARD
• Manufacturer Part Number: 36724