Robot or human?


Funky link, not sure why but you can search on Walmart site:
Gator 4-1/2-Inch Zirconium Oxide Flap Disc Wheel, 80 Grit, 1-Pack, 9718-1

 

Amazon.com: DEWALT Flap Disc, Zirconia, 4-1/2-Inches x 7/8-Inches, 60-Grit (DW8308) : Industrial & Scientific

Buy DEWALT Flap Disc, Zirconia, 4-1/2-Inches x 7/8-Inches, 60-Grit (DW8308): Flap Discs - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

 

This is All American Sharpener's recommendations.

• We recommend a 36 or 40 grit flap disc OR a hard disc. Either straight or beveled wheels work equally well.
• Type 29 or 27 flap discs will work equally. We use type 29 only because they are the easiest to find in our area. You will be fine with either type.
• A 36 or 40 grit flap disc will take less material, leave a smoother grind and may be desirable for subsequent re-sharpening, as it will take very few grinding passes to re-sharpen the blades once the proper angle has been established.

Flap discs are pretty easy to find.

 

Thanks. I'll try to find the equivalent ones in the Canadian stores.