Flap Discs

Forvane zirconia flap discs for metal fabrication

Shop Canadian-made Forvane 4-1/2 in × 7/8 in zirconia flap discs for weld removal, grinding, blending and surface preparation on steel and stainless steel. Choose standard zirconia or Premium Zirconia in Type 27 and Type 29 profiles, with grits from 36 through 120 and production packs from 10 to 1,000 discs.

Type 27 vs. Type 29 flap discs

Type 27 flap discs have a flatter profile for broad contact on flat plate, sheet and larger surfaces. They are a strong choice for controlled grinding, weld blending and surface preparation. Type 29 flap discs use a conical profile that concentrates pressure for aggressive stock removal, edge work, weld cleanup and contoured components.

How to choose flap-disc grit

  • 36–40 grit: heavy stock removal, weld grinding and rapid cleanup
  • 60 grit: general-purpose grinding and blending
  • 80 grit: controlled surface preparation and scratch refinement
  • 120 grit: finer blending before coating or finishing

Bulk flap-disc packs for shops and production

Every Forvane product is offered in locked packs of 10, 25, 50, 100, 500 and 1,000. This makes it easier for maintenance teams, fabrication shops and procurement departments to standardize grit selection, forecast usage and order larger quantities at a lower unit cost.

Frequently asked questions

What is a zirconia flap disc used for?

Zirconia flap discs combine coated abrasive flaps with a reinforced backing to grind and blend in one step. Common uses include weld removal, edge blending, deburring, rust removal and preparing steel or stainless steel for finishing.

Can I use these flap discs on stainless steel?

Yes. These Forvane zirconia flap discs are labelled for steel and stainless steel. Use dedicated discs where cross-contamination control is required.

What size grinder fits these discs?

These products are 4-1/2 inches in diameter with a 7/8-inch arbor for compatible angle grinders. Confirm the grinder arbor, guard and maximum spindle speed before use. The discs are rated to a maximum 13,300 RPM.

Which profile should I choose for flat steel?

Choose Type 27 for broad, flatter contact. Choose Type 29 when you need more concentrated pressure for welds, edges or aggressive material removal.