Specifications
| Product Type | Flap Disc |
|---|---|
| Diameter | 9 in (230 mm) |
| Arbor / Bore | 7/8 in (22 mm) |
| Disc Type | Type 27 (flat) |
| Grit | 40 |
| Pieces per Pack | 2 |
| Abrasive Grain | Aluminum Oxide |
| Backing | Fiberglass |
| Suitable Materials | Metal, Stainless Steel |
| Application | Grinding, Blending, Deburring, Finishing |
| Compatible Tool | Angle Grinder |
| Max. Operating Speed | 6,650 RPM |
| Brand | Whitby Abrasives |
Description
- DURABLE - Fiberglass backers provide a balanced, smooth grind.
- SIZE - 9" Diameter, 7/8" Arbor (230mmx22mm), 40 grit.
- PACKAGE - 2 PCS high performance aluminum oxide flap discs.
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: 9 inch angle grinders with a 7/8" arbor.
Q: Which grit should I choose?
A: This is a coarse 40 grit for heavy stock removal; step up to finer grits to blend and finish.
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.