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.<br><br><strong>Replaces:</strong><br><ul><li>HONDA 72531-VK6-010</li></ul><strong>Dimensions:</strong><br><ul><li>LENGTH: 20-3/4"</li><li>WIDTH: 2-5/8"</li><li>C. H. DIA: 1-3/4"</li><li>THICKNESS: 0.1340"</li><li>OUTSIDE DIAMETER: 19/32"</li></ul><br><br>