Hi AdeV,
I have a (very old but very good - well, I like it!) Black & Decker DN339 small bandsaw that also wants 59.5" x 1/4" blades. Iīve bought several (over the years) from Chronos,
http://www.chronos.ltd.uk/acatalog/Chronos_Catalogue_Bandsaw_Machines___Bandsaw_Blades_181.html(about halfway down the page)
They donīt say in the page what material it is, but theyīve worked just fine for me, for brass + ali, and for thin steel. For ten Ģ, it maybe is worth a try
I often cut 2"x2" ali bars with them blades, it does take some time, but still far faster (and easier on the elbow) than a hacksaw. Through 3 - 10 mm ali plate, it goes about the same as through equivalent plywood. In my use, one blade lasts for about 20-25 months. I havenīt broken any, the blade just gets dull.
Iīve also made my own (years ago), from a roll of bimetal blade that I bought locally. Ends (duly thinned) silver soldered, with a homebrew cobbled jig. Iīve also tried spot welding the ends, but they snapped open rather easily. Must have been my fault really, of course they can be welded, but not like I did it
Silver soldering, the way I did it, was far stronger. They will cost less per blade in the long run, although the roll of material cost a zillion... Itīs not really suitable for such a small saw, the material is wider (8 mm instead of 6.3 - I couldnīt find any narrower) and a bit thicker. It needs more tension in the blade than the saw was designed for, and is only good for straight cuts.
