I picked up some inexpensive tooling for tinkering

On occasion I’ve had need for adjusting holes a few thousandths larger. This set came from India. Those fellows with dirty feet and sitting on dirt floors making stuff. They do seem to be hard, dedicated workers! (Just don’t buy the street chicken) These are adjustable 6-blade reamers. Claim to be hardened carbon steel cutter blades. The smaller size will enlarge up to the next size taking over. We’ll see if they cut well. For $30 delivered I’m not too worried.