I have never used a quick blade change jigsaw that clamped the blade as well as a good screw down type, as long as the guides are good I would expect the old type to cut better.I have the barrel grip version of that saw and yes you do need a screwdriver to change the blades. Sort of annoying but not a deal breaker and it doesn't effect the way the saw cuts in any way. A perfectly good corded tool that runs like a sewing machine.
That musta drove you crazy til you found it.All ready to go. Note the small broken blade on the welding table.
I'm trying to figure out a way to attach it to the cord like a drill chuck key, or tuck it onboard somewhere. Nothing good is jumping to mind, and I don't have a box for that tool.Hint: Paint the handle of the special blade changing screwdriver yellow so it's easy to find in your screwdriver drawer. It's tip is no wider then the shank and most ordinary screwdrivers won't fit into the saw's slot.

The Bosch jigsaw line was originally Scintilla.This was going to be tossed in a dumpster so I rescued it as my Craftsman crowntop era jigsaw has been acting up. I didn't realize how old it is until I brought it home and noticed it didn't have a trigger for on/off -- it's the slider switch. On the other side is another slider to choose a speed setting oddly (I think) indicated as 1, 1.5, 2, 2.5 and 3 (why not 1-5?).
Anyway, I couldn't figure out how the blade change mechanism worked until I found this thread. Thanks Cobbler for that. Now awaiting a batch of T type blades to check it out. On the panel it's noted as a 935 Scintilla at 3 amps. I cleaned it up a bit. I think it's kinda cool. I only have an occasional need so I'm hoping it does the trick.
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That's the same saw my wife bought me for an anniversary gift---40 years ago. The orbital feature was a true game changer back then
I have a late 80s model. Pure junk. 315…. Thus Ryobi.Are the old 80s vintage Craftsman jigsaws worth anything? I have one in perfect condition that I no longer use. I suppose someone must collect them.
With Craftsman jigsaws, it may matter which model.Bosch jigsaw: World Standard
Craftsman jigsaw: Third World Standard