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Circular flap disc with overlapping abrasive segments marked 150 grit 77728

United Abrasives-Sait

United Abrasives-Sait 150 Grit Aluminum Oxide Flap Disc 77728

SKU CH-TRF1-3MWGH

A 150-grit aluminum oxide flap disc for grinding and finishing metal surfaces

  • Product typeAbrasive Accessories
  • 150 grit aluminium oxide cuts paint and metal smoothly
  • Flap design conforms to contours for even finishing
  • New condition ensures full abrasive life from first use
  • Abrasive accessory type fits standard angle grinders directly
  • Manufacturer part 77728 identifies the exact specification

Flap Disc 150 Grit Aluminum Oxide

This flap disc uses 150 grit aluminum oxide for surface preparation and finishing on metal. It is suited for weld blending, light deburring and rust removal in automotive or workshop tasks. The disc fits standard angle grinders with a matching arbor.

Setup Compatibility Check

Verify that your angle grinder accepts the disc diameter and arbor size before ordering. Confirm the tool’s maximum RPM meets or exceeds the disc rating for safe operation. Ensure the workpiece material is compatible with aluminum oxide abrasive.

Build and Mounting Notes

The aluminum oxide flaps wear evenly to expose fresh grain during use. A reinforced backing plate adds strength for controlled stock removal. The arbor hole allows quick changes on compatible grinders without extra adapters.

How it compares

Measured against everything we stock in Painting Tools & Sprayers, at today’s prices. Recalculated every night.

Price $27.99
Pricier than about 73% of the 640 comparable items (median $9.99).

Specifications

Product
Brand nameUnited Abrasives-sait
Product typeAbrasive Accessories

Questions about this item

Does the 150 grit aluminum oxide flap disc 77728 come with a backing pad or must I buy one separately?

The disc is sold as a single abrasive accessory; a compatible backing pad for your angle grinder is not included and must be purchased separately.

How do I decide between the 150 grit option and other grits for surface preparation?

Choose 150 grit when you need a fine finish for paint prep, light deburring or blending without aggressive material removal.

What does the 150 grit rating mean for material removal speed on steel?

The 150 grit aluminum oxide surface removes material more slowly than coarse grits but leaves a smoother profile ready for primer or topcoat.

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