Permute Numbers By Variable Increments

I'm trying to write some VBA code that can vary an undefined number of variables from a certain value to a certain value and by a certain increment. I know I can do this using For, from to step function but I could potentially have as many as 60 variables that need to be permuted and as little as 1.

For example:

Permute variable 1 from 2 to 6 by 2
Permute variable 2 from 6 to 8 by 1

should output
2 6
2 7
2 8
4 6
4 7
4 8
6 6
6 7
6 8

how to make this code efficient instead of writing 60 for loops? that could either be used or not?