Here's the 8" big brother. I got tired of it sitting in that cute little box. The crate is actually quite nice and is very re-usable. My wife was eyeing it so I suspect it will suddenly disappear.
Aside from an extra 2 inches and what feels like 40lbs, it's identical to the other one inside and out. I took no photos of the insides of this one. Just look back a few posts and see the 6" guts.
After rinsing all the parts individually, applying a light layer of grease and re-assembly, this one was a little stiffer to operate than the smaller one. The jaws were a slightly tighter fit. No worries, in time all chucks loosen-up.
This is really a case of Deja-Vu. The backplate took a touch of adjustment to open-up the tapered hole then, the registration shoulder was turned-down just a few thou so I could loosen the main bolts and bump it around if ever needed.
Just like the other chuck, this one was running like a champ right out of the starting blocks. With the RO adjusted to zero 1" from the jaws, it had +/- 1.5-ish at 20 inches down range. The TIR looked to be 3.25 thou. I was using a half-thou indicator and the probe was properly tangent to the shaft to get a decent reading.
FWIW, I ordered one of these on eBay and one on Amazon. I don't know this CME seller from Adam or Eve but all I can say, is they carry decent cheap chucks. I started cleaning this thing up at 6:45pm and was taking TIR measurements in under 90 minutes. I can live with that and suspect these chucks will be the last ones I'll ever need to buy.
Ray
