I have a Lenox hacksaw from the '70s that is exactly like Andy's craftsman except it's blue. It lost its blade holders bosses in the '70s, and I have been using nails ever since. I have a much newer Lenox that has the fanciest possible wingnut. The frame itself it quite stout, so it can tension the blade much better than the sheet metal saw frames everyone thinks of when mentioning wingnuts. I saw that Lowe's is selling a different Lenox that has a similar mechanism to the 225, except it's backwards, the knob is at the top of the handle. Milwaukee sells a seemingly identical saw in red. There is a Stanly that has an adjustment knob where the Sandvik lever is. Maybe next time I'm at home depot I'll look at it