I have come across these tools and don't have a clue.
Don't know about the top one.
The bottom one is a spoke jack:
The top one is a valve guide reamer and fixture. The top cone fits over the reamer, then start the reamer in the valve guide and slide the cone down to the seat in the block. The u shaped clamp holds the cone in place with the bolt screwed into a head bolt hole. Nice tool. Im interested in it, if for sale. have fun and be safe.....