Specifications
| Product Type | Flap Disc |
|---|---|
| Diameter | 4-1/2 in (115 mm) |
| Arbor / Bore | 7/8 in (22 mm) |
| Grit | 60 |
| Pieces per Pack | 10 |
| Abrasive Grain | Ceramic |
| Suitable Materials | Stainless Steel, Carbon Steel, Titanium |
| Application | Grinding, Beveling, Weld Blending |
| Compatible Tool | Angle Grinder |
| Max. Operating Speed | 13,300 RPM |
| Brand | Whitby Abrasives |
Description
- Advanced ceramic abrasive technology — premium ceramic grains that self-sharpen during use for consistent, high-speed cutting power.
- Cooler grinding, less workpiece damage — reduces heat buildup and minimizes discoloration, burning, and warping on stainless steel and heat-sensitive metals.
- Extended lifespan vs. traditional discs — outlasts aluminum oxide and zirconia flap discs by up to 2–3x.
- Heavy-duty performance on hard metals — for grinding, beveling, and weld blending on stainless steel, carbon steel, and titanium.
- SIZE - 4 1/2" x 7/8" (115mm x 22mm) Grit 60#.
- PACKAGE - 10 PACK.
Frequently asked questions
Q: What is a flap disc used for?
A: It grinds and finishes in one step — weld blending, deburring, rust and paint removal, and surface finishing on metal and wood.
Q: What is the difference between Type 27 and Type 29 flap discs?
A: Type 27 is flat for surface and edge work on flat areas; Type 29 is conical for more aggressive stock removal and better contact on edges and contours.
Q: What grinder do these fit?
A: Standard angle grinders matching the arbor size listed in the title and specifications.
Q: Which grit should I choose?
A: Use a coarse grit (36–40) for heavy stock removal, medium (60–80) for general grinding, and fine (120+) for blending and finishing.
Why choose Whitby Abrasives
Whitby Abrasives Inc. is a Canadian supplier of professional grinding, cutting, sanding, and finishing abrasives. We focus on consistent quality, fair pricing, and fast shipping across Canada so fabricators, welders, woodworkers, contractors, and DIYers get abrasives that perform job after job. Have a question about sizing or the right grit for your project? Our team is happy to help.