Just wondering if anyone has feedback on this arbor?
https://www.chronos.ltd.uk/product/r8-stub-slitting-saw-arbors/I have one like this, its so-so.
https://www.kbctools.com/itemdetail/1-449-100The sliding collars are a good idea to fit differnt saw hole ID's but because they are nestled into one another the runout isn't all that great. I could probably tolerate it for the infrequent time I use it, but it has another irritating factors. The spring is sticky despite lubrication & cleaning. Also they didn't tap the draw bar hole deep enough. I either added a spacer or shortened the drawbar on my previous mill, but the arbor has the faint odour of cheaptoolicitus, time to cut bait.
On the opposite end of the spectrum I have some more robust holders of good quality, meant for bigger saws. But its crazy, the 1" ID saw hole requires a big toolholder with 1" boss. It has a 1" arbor, so needs to be held in a 1" bore R8 end mill holder. 4 pounds of rotating tooling & many dollars later... all that to hold a 3"x.045 width jewellers/slotting saw. I guess I could get a 1" R8 collet, but now no keyway to the shank. Why have a key in the saw & nothing on the spindle.
I suspect the Chronos's is offshore too, at least judging by the shiny surface and 'ground all over' (without a TIR spec). But maybe worth a shot?
What is it about these saw arbors? I see these delux brands for like $300USD with 0.0002 or 0.0004: runout? Thats fine but I'm skeptical the blades are going to be that spec, at least the typical HSS from my local supplier. I don't think 15-35$ is going to buy that kind of quality. Every one I have run goes Vvvt-Vvvt-Vvvt as it cuts no matter how many times I adjust it in the holder. Maybe there are some Swiss saws I'm not aware of that are meant to do this all day on a CNC?