Bullard 36636 Type 29 Flap Disc 4.5in 60 Grit Zirconium

Product Description

The BULLARD 36636 is a Type 29 high-profile zirconium flap disc designed for aggressive metal grinding and finishing. The conical grinding angle of the Type 29 profile increases surface contact on flat stock and weld seams, making it well suited for material removal and edge blending. Built with zirconium abrasive grain, this disc delivers consistent cut rates and longer service life compared to standard aluminum oxide flap discs. The 4.5-inch diameter pairs with a 7/8-inch arbor hole for use on standard angle grinders. At 60 grit, it removes material quickly while leaving a surface ready for further finishing passes. Maximum rated speed is 13,300 RPM.

This flap disc is used on ferrous and non-ferrous metal surfaces in fabrication shops, structural steel work, welding cleanup, and general industrial grinding applications. The 60-grit zirconium construction handles mill scale removal, weld bead grinding, and surface preparation ahead of coating or painting. It is sold individually with a minimum order quantity of one, though the manufacturer packages this product in boxes of 10.

Key Features

• Type 29 high-profile conical design increases contact angle for flat surface and weld grinding
• Zirconium abrasive grain for longer disc life and consistent stock removal rates
• 60 grit cuts aggressively while still allowing surface blending
• 4.5-inch diameter with 7/8-inch arbor fits standard angle grinders
• Rated to 13,300 RPM for safe operation at common grinder speeds
• Box quantity of 10 for shop and jobsite stocking

Compatibility

Designed for use on standard 4.5-inch angle grinders with a 7/8-inch arbor. Suitable for metal grinding and finishing applications on ferrous and non-ferrous stock.

Installation Notes

Flap discs of this type are installed and serviced by metalworkers, fabricators, and welders using standard angle grinders. Before mounting, confirm the grinder's rated no-load RPM does not exceed the disc's 13,300 RPM rating. Inspect the disc for damage before each use and ensure the backing plate and arbor nut are properly secured. Always use appropriate PPE including face shield, gloves, and hearing protection when operating grinding equipment.

Technical Specifications

• Disc Type: Type 29 High Profile
• Abrasive Material: Zirconium
• Diameter: 4.5 inches
• Arbor Size: 7/8 inch
• Grit: 60
• Maximum RPM: 13,300 RPM
• Application: Metal Grinding and Finishing
• Box Quantity: 10

Standard Information

• Brand: BULLARD
• Manufacturer Part Number: 36636