wouldnt it just be easer to tap it than out in Heli Coils?

 

It all depends on if you have the material there to go larger. In your case, you should be able to step up to the next larger size. If you do not have the extra material, or do not have the room for the head of a larger bolt (and don't have access to socket headed cap screws, etc), then Helicoil is an excellent alternative.

Just for some additional information, we use Helicoils in many of our fixtures in our large CNC machining centers. Reason, the threads wear out. With helicoils, we can just remove the coil and put in a new one.

 

Another benefit to using heli coils is thet you still have the bolt with the same thread.