My house, which is 60 years old and undergoing remodeling, has a
window that contains 40 glass blocks (7 3/4" square and as thick as
the wall) that I'd like to salvage and reuse if possible. The blocks
have about a quarter-inch of mortar between them. I don't think I want
to chisel the blocks apart for fear of chipping or breaking them. Is
there a circular saw blade that'd be suitable for this job? I've been
told that the Fein Multi-Master (homeowner's version) will remove the
mortar without damaging the blocks. Has anyone had experience
salvaging glass blocks and/or with the Fein MultiMaster?

Thanks.

Lynn Willis
Indianapolis