Quote Originally Posted by Liftoff View Post
I doubt a spinner could cut through any type of tool steel, specialy the tempered ones. Its much tougher than hardox or titanium but heavier than both. I would be concerned about shattering tho, mounting your tool steel on aluminium might help.
Hardox weapons regularly break or twist Tool steel ones. I don't think any one has ever used Tool steel as armour over here though so we will have to see.