pic 1, cutter 1 looks like it could be a boring bar for the lathe.
pic 1 cutters 2 and 3, like stated above look to be endmills with a morse taper.
pic 2, still thinking but it could be tooling for a lathe. doubt it.
Pic 3, looks to be a hold down that goes in the T slot of a mill (or DP).
Pic 4, I agree, a quick connect for some form of air tool.
Pic 5, this had me wondering but i think it could be for mounting a dial indicator to.
Dad was a machinest, but those skills arent passed on via childbirth.
Agree on pic 1.
Pic 2 looks custom made so could be anything. Would guess, as it is adjustable, that it is for either a depth stop or some kind of calibration / quality control.
Pic 3 is a holddown bolt that is made so it can be lifted from the t-slot (and not have to be slid all the way to the end. Super practical on lager machines or where several holddowns are used for complex items.
Pic 4 could be for attaching water coolant to long, hollow drills. But not sure
Pic 5 is probably not a tool directly but could be a guide or template. Thinking grinding guide, drill guide, marking guide, template for setting up a specific kind ot tool etc
These 3 items seems to be made for specific machines and their accessories. If you have any idea what they might have been i am sure we can get closer.
Agree, pic #1 are mills, two with Morse tapers. The long one has an allen set for replacing the cutter.
Picture #2 if definitely a depth gauge, I remember old time machinists using them in my first plastic plant in the 70's. The screw is for tightening the bar when the proper length is set.
Picture #3 is a T slot hold down bolt for probably a tool rest on an old lathe.
Pictures #4 that is definitely a fitting for water soluble oil to be sprayed on a piece while cutting. You can clearly see the rust on the one fitting.
Picture #5 is a drill guide, but I'm not sure about the L handle part. It looks like it might interact with the round post on the bottom to lock into some kind of holder. You can see wear in the holes, where the drill bits were held.
I don't think any of it is special made - just old and probably not used much anymore by modern day machinists.
Actually, in pic 1, the first and second cutters are replaceable pilot counterbores, not end mills. The 3rd cutter is indeed an end mill. The other stuff yet to be identified is custom made stuff, likely jigs for specific tools/jobs.
#5 appears to be some kind of positioning jig… using the 'holes' to get a pre-defined distance - 1/2", 5/16", 1-3/8" (and I can't make out the other two) from the pivot point. Most likely pivots on the bushing with a screw, but I got no idea about the replaceable arms of different length or what those may be used for.
Brian thanks for the terminology, this stuff is all foreign to me a wood butcher. I started buying all these lots of machinist tools because I wanted some better quality squares, calipers, etc. I've found some pretty neat stuff.
first photo spot facing bits. the third I would be leary of useing as a mill cutter without something to hold them in place any taper will work free from the bore with a side load. I have seen several tapered drill chuck adapters drop out and spinn like a top when someone attempted to use the drill for a mll. I would agree with the depth or marking gage call, what is the size of the bore and the od of the smooth od on the "coolant" adapter? could just be a collet for small drill in a large chuck or for a mill collet. number five is a cam positioner for a jig. rocking on the fixed post the pin is put in varying holes to adjust dimension between face and stop. looks like 32nd increments from 3/8-1/2" check dimensions from center of fixed pin to center of individual holes.
I think you've got the correct answer on all but #4. It's a floating holder for a tap or reamer. The cutter is inserted into the "quick connect" type joint. It's made so the outer sleeve spins true to the spindle but the inner mandrel has some float to it so it can follow the lead hole.
The top part is a counterbore with the pilot missing and the other two are taper shank milling cutters. the second shot looks like some sort of adjustable stop with the screw being a cam to lock it in place and two screw holes to bolt it to something.
Photos 5 looks like a drill guide. Do the number on it correspond to the distance between centers of the holes??
All those bent arms could be depth stops for drilling!
Jim
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