Bullard 36628 Flap Disc Type 29 4.5 in 80 Grit Zirconium

Product Description

The BULLARD 36628 is a zirconium flap disc designed for metal grinding and finishing applications. Built to a Type 29 standard profile, this disc combines abrasive flap construction with zirconium grain for aggressive stock removal and a controlled finish in a single tool. The 4.5-inch disc fits a 7/8-inch arbor and is rated to a maximum of 13,300 RPM. At 80 grit, it is well-suited for weld blending, deburring, and surface conditioning on ferrous and non-ferrous metals. Fabricators, welders, and metal finishing technicians are the primary users of this disc type.

This flap disc is intended for use on angle grinders in fabrication shops, construction sites, and maintenance environments where metal surface work is required. The Type 29 angled profile increases surface contact on flat and contoured workpieces, making it effective for aggressive grinding as well as blending passes. At 80 grit, the disc removes material efficiently while leaving a surface ready for further finishing or coating. Each box contains 10 discs.

Key Features

• Zirconium abrasive grain for aggressive cutting action and extended disc life on metal
• Type 29 standard profile increases contact angle for flat and contoured surface work
• 80 grit removes material quickly while leaving a blendable surface finish
• 4.5-inch diameter with 7/8-inch arbor fits standard angle grinders
• Rated to 13,300 RPM for compatibility with common variable-speed and fixed-speed grinders
• Sold in boxes of 10 for shop and jobsite stocking

Compatibility

Designed for use on standard angle grinders with a 7/8-inch arbor accepting 4.5-inch flap discs. Suitable for grinding and finishing operations on metal substrates.

Installation Notes

This disc is installed and serviced by welders, fabricators, and general tradespeople using angle grinders. Before mounting, confirm the grinder's rated RPM meets or exceeds the disc's 13,300 RPM rating and that the arbor size matches. Inspect the disc for damage before each use and never exceed the rated RPM. Follow applicable ANSI B7.1 safety standards for the use of abrasive wheels.

Technical Specifications

• Disc Type: Flap Disc, Type 29 Standard Profile
• Abrasive Material: Zirconium
• Grit: 80
• Diameter: 4.5 inches
• Arbor Size: 7/8 inches
• Maximum RPM: 13,300
• Application: Metal Grinding and Finishing
• Box Quantity: 10
• Unit of Measure: Each

Standard Information

• Brand: BULLARD
• Manufacturer Part Number: 36628