Grinding the Rot

[ElBichoMalo]

Picked up a new must-have tool and wanted to share. If your objective is to remove a lot of material with malicious intent, get this. Says it's 36 grit, but seems way more aggressive than my 36 grit papers that I used before this. I got it from Harbor Freight, so you know it's good.

Made short order of my deck core....balsa, sure....plywood, YEP!