Will chrome vanadium tools handle impact work, or are they hand-tool only?

Chrome vanadium is built for torque and repeated cycles, not hammer strikes. Use these with hand-tightening or breaker bars—skip the air tools or dead blows.

Does this case have a locking mechanism or just a snap closure?

Construction details on the case latch aren't specified—expect a standard toolbox closure, but test it before relying on it for secure transport.

Are the sockets metric, SAE, or mixed?

The set is mixed sizes but specific socket sizes and standards aren't listed. Verify the socket range matches your wrench collection before ordering.