Rob, I have been tempted to regurgitate an eleven-year-old thread I opened back in November of 2010. I called it ‘Over the counter’.
It wasn’t about 12" hacksaw blades but primarily, the 6" (150mm) type known as 'Junior' hacksaw blades. I bought the blades at one of the major hardware stores known throughout in Australia.
You can, if you wish find the thread here – **LINK**
Unfortunately, the images did not appear and my initial post was largely incoherent. Not until August 2017 when (for some odd reason), the thread was revived did I discover that the photo (this one)

was missing.
For convenience, here’s the second (2017) page of the thread – **LINK**
Buyer beware!
Cheers,
Sam
PS I can't remember the original Latin expression, but someone will 
Edited By Sam Stones on 16/11/2021 21:08:03