The SM57 is a good general purpose instrument mic, if your budget is tight.

Solid, sturdy, sonic quality dependable as can be, a wonderful all-purpose mic

This is a great all purpose dynamic mic, I use it for instruments, vocals, even field recording sometimes.

Generally regarded as about the best general-purpose

The purpose for this review is to state exactly what another reviewer mentioned regarding fake\counterfiet Shure microphones

This is a great all-purpose dynamic microphone for everything from amps and instruments to vocals, and it's far and away one of the best mics out there in terms of durability (they don't call them the industry workhorses for nothing)/sound/value.

Solid, sturdy, sonic quality dependable as can be, a wonderful all-purpose mic