questions about some tooling

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got a fair amount of tooling the other day when I pic up my lathe most of it is very old and is hard to find information on. I figured maybe a few people can help me here.1- I know the large collet is 5C and suspect the medium size to be 3C can anyone tell me what the smallest size there is? Also the face on most the collets i received are rusty what is the best way to clean those?2-5 -Figured out as much as it is a chuck and I'm assuming the collet in the last picture goes with it but any information on how its used and how to change collets would be appreciated. Attached Images
Reply:1-Curious as to what this bit is for. My only guess is a shaper2-Anyone have a clue what this is?3-Home made surface gauge?4&5- Seems like an indicator holder but the base isn't magnetic so no sure.thanks in advance Attached Images
Reply:Hi Andyman,Pic 1 - 1C is the smallest, something like 1 1/2" long, I don't know what that one is (looks like more than the 9/1 taper hardinge uses).Pics 2,3,4,5 - Jacobs rubberflex collet chuck, the nose piece has external threads so just keep turning the outside ring till the nose piece comes out. (collets are pricey for these).Pic 6 - No clue, looks like it belongs inside a tool or machine.Pic 7 - Again no clue, again looks like it belongs to another tool.Pic 8 - Looks like a home made comparator stand (top surface may be ground cast iron, needs cleaned up).Pics 9,10 - That's a surface guage, the bar holder and large thumbscrew are backwards (the rod goes through the cutout section in the base if your indicating something below the surface of the gage). The pins in the back can be pushed down to ride against an edge or "T" slot if your using it for quick setup of piece parts on a machine table. These usually have 2-3 rods for indicators and a scriber with one end curved. (pretty handy for millers and shapers).Matt
Reply:From your second post.#1 Looks like something custom ground for a job, like a tool to push into a hole to cut a groove.#2 is clearly a muffle bearing because of the exhaust corrosion.#3 is a holder for a dial gauge. A workpiece sits on the plate under the gauge. Sometimes set to a known reference, gauge tells you the difference.#4 usually holds a scribe, the mast is missing. I have 2-3 of them that I got at yard sales. It and the workpiece are put on a surface plate.
Reply:On #1, it may be a metal shaper tool bit. Check to see if the shank might be 5/8", in which case its probably a Bridgeport shaper bit.Lincoln PrecisionTig 275Miller 251Miller DialArc 250Bridgeport millHossfeld bender & diesLogan shaperJet 14 X 40 latheSouth Bend 9" 'C'Hypertherm 900Ellis 3000 band saw21"Royersford ExcelsiorTwo shops, still too many tools.
Reply:Maybe should have mentioned this in the beginning but the lathe i picked up was a 6" atlas. Could the smallest collet be one of the original collets for this lathe? haven't found much about the original 6" atlas collets other than they aren't made anymore.As for the comparator stand how would I go about cleaning it up? my first thought is a wire wheel on a grinder that's why i ask. Is a flex collet chuck usually used on a lathe? Just wondering since a plate didn't come with it that would lead me to believe it was ever mounted on the atlas.
Reply:If it was me I would hand brush the stand followed by a little file work. Surface will most likely be pitted and unless you want it surface ground, use it as it is. They are cheap enough to buy new.Flex chuck may not have been mounted on the lathe. Could be something the previous owner picked up in their travels.
Reply:Originally Posted by AndymanMaybe should have mentioned this in the beginning but the lathe i picked up was a 6" atlas.  #1 Could the smallest collet be one of the original collets for this lathe? haven't found much about the original 6" atlas collets other than they aren't made anymore.#2 As for the comparator stand how would I go about cleaning it up? my first thought is a wire wheel on a grinder that's why i ask. #3 Is a flex collet chuck usually used on a lathe? Just wondering since a plate didn't come with it that would lead me to believe it was ever mounted on the atlas.
Reply:6-AT is for the 6" atlas correct? Probably should have looked at the face of the smaller collets a bit sooner they are all 6 AT royal brand collets. A few are missing the measurements but this i what i got. The ? on 7/64 is because the measurement is missing and not sure if the collet is 1/8" or 7/64".1@1/32"     ?@7/64"       1@3/16"2@3/64"     1@1/8"         0@13/64"2@1/16"     1@9/64"       1@7/32"1@5/64"     1@5/32"       0@15/64"1@3/32"     1@11/64"      2@1/4"Do these 6-AT collets go any higher than 1/4"? I also got a wide variety of 3C and what I think maybe 3-AT because the threads on those are longer. Can I clean up faces and bodies of collets the same way as mentioned for cleaning the comparator stand(steel wool or hand wire brush)?The shank on the shaper tool is 5/8". Is this tool worth much? Also came across a site that sells some of those flex collets for $15-$25 for decent used ones. I've been reading quite a bit in the last week or so since getting this lathe, and I'm starting to think that collets are better then chucks or that collets are simply easier to come by. Just curious as to which is better. I wasn't aware there was much of a difference in collets vs chucks and would appreciate it if someone could set me straight or point me in the direction of some reading to do on this subject. oh remembered one more thing that was puzzling me and took a picture. Did a little searching before I posted this and I've gathered it is for mounting dial indicators in but not sure what the previous owner has turned it into. any ideas? Attached Images
Reply:Do the 2 wheels turn?  Looks like a tool to dress grinding wheels.
Reply:after loosening the thumb screw a little the wheels turn
Reply:A collet is handy and useful if you are turning things with (or from) the same 'shank' diameter.  Collets generally have better concentricity/run-out specs than chucks.A chuck is handy because it can generally grab any diameter between min and max.  They both have their benefits and drawbacks.http://www.kanabco.com/vms/lathe_col...collet_01.htmlhttp://www.kanabco.com/vms/library.html  The best laid schemes ... Gang oft agley ...
Reply:The Bridgeport shaper tool, if indeed it is one, looks to be on the crusty/rusty side of things. Can't tell much from your picture, but it may be for hobbing internal gear splines. If it isn't in bad shape, label it as a Bridgeport shaper tool and you should see some action on eBay as they do go for far more money than they should warrant.Lincoln PrecisionTig 275Miller 251Miller DialArc 250Bridgeport millHossfeld bender & diesLogan shaperJet 14 X 40 latheSouth Bend 9" 'C'Hypertherm 900Ellis 3000 band saw21"Royersford ExcelsiorTwo shops, still too many tools.