Honda Blade, Fits 21" 72531-Vk6-010 Honda
Brand: Rotary
Honda 72531-VK6-010 BLADE. Fits 21" HRC216K2 PDA Upper Blade. Used with Rotary 15-12615 Lower Blade. Honda code 8504896. 2- 5/8" Wide. 1.25" (32MM) Center hole.
Replaces:

HONDA 72531-VK6-010

Dimensions:

LENGTH: 20-3/4"
WIDTH: 2-5/8"
C. H. DIA: 1-3/4"
THICKNESS: 0.1340"
OUTSIDE DIAMETER: 19/32"
Sold on Amazon