Specifications
| Product Type | Flap Disc (Type 29) |
|---|---|
| Diameter | 4-1/2 in (115 mm) |
| Arbor / Bore | 7/8 in (22 mm) |
| Grit | 40 / 60 / 80 / 120 (assorted) |
| Abrasive Grain | Zirconia Alumina |
| Suitable Materials | Metal, Stainless Steel, Wood |
| Application | Grinding, Blending, Sanding, Finishing |
| Compatible Tool | Angle Grinder |
| Max. Operating Speed | 13,300 RPM |
| Brand | Whitby Abrasives |
Description
- HIGH QUALITY - Durable, wear-resistant, high elasticity and grinding efficiency, low noise and long wheel life. CAUTION: wear proper eye, face, body, and respiratory protection; comply with ANSI B7.1 & OSHA; do not drop; do not exceed max RPM.
- MULTIPURPOSE - Designed for grinding, blending, sanding, and finishing on a wide range of materials such as metal, stainless steel, and wood.
- SIZE - 4 1/2" x 7/8" (115mmx22mm), Type 29. Available in assorted grit packs (40/60/80/120).
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 4-1/2" angle grinders with a 7/8" arbor.
Q: Which grit should I choose?
A: Use a coarse grit (40) for heavy stock removal, medium (60–80) for general grinding, and fine (120) for 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.