That is a very dangerous tool without any safety features. Why all the 10 edges are sharpened and not just 5? If a blade hits a rock, it or a piece of rock may fly to your face. Do you know how many serious accidents happen to lawnmower users.

I don’t understand why nothing exists in the market for compost shredding. I know it’s pretty niche, but wouldn’t you have thought a company like TimberWolf or something that is for shredding wood would have had a similar implement for shredding compost. I have a roughly 1 tonne pile of compost, and it’s in its final stages but just not quite getting there yet. A shredder would not only blitz the leaves and twigs but it would also mix the carbon:nitrogen material better. At the moment I use a hand fork and it takes about approximately 35-40 mins to fully turn and mix the pile. It’s so annoying.

That's goofy

Im from south africa,

What is pork puller Never heard

Mediocre. Using a drill on all that in the bin would take a very long time to chop it down.

I use a cordless trimmer with the leaves in my plastic compost bin. Works great! And to mix the compost, I use the same Ryobi Drill you have along with an 36" digging auger. It works great and I do not have to worry about a pitchfork or shovel destroying the walls of my plastic bin.

Could the edges of blades be sharpened with a file?

I love this idea. Easiest to use compost stirrer on youtube.

You could get away with half the grinding if you always spin it the same direction

Will also give this a shot. Probably allow for some moisture to add resistance between particles. Grind, mix, let it sit a few days. Rinse and repeat. At some point sift out the fines and keep the stubborn stuff for round 2, or 3, or.... 45. Thanks for the idea!

Great idea going to try it thanks.