On Tuesday, July 23, 2002 at 5:04:20 AM UTC-4, DeepDiver wrote:

Hello again everybody,
Could someone tell me what "Yankee" calipers and dividers are and how they differ from regular calipers and dividers?
Also, what exactly is a "solid nut" on a caliper or divider? I see this term used often as a marketing point. Is it better than a spring nut?
Thanks,
Michael

I can tell you Starrett & Lufkin Calipers are the most popular. The Starrett differences are;
Toolmaker Spring Type No.274,275,277 2-6” Caliper OD/ID/Divider = round leg / solid nut
Fay Spring Type No.74,75,77 3-6” Caliper OD/ID/Divider = flat leg / both solid nut & spring nut
Yankee Spring Type No.73,79,83 2-1/2 - 12” Caliper OD/ID/Divider = flat leg / both solid nut & spring nut - with threaded nut attached to the legs
Firm Joint No.26,27 3-36” Caliper OD/ID/Divider = flat leg / both solid nut & spring nut - with threaded nut attached to the legs
Lock Joint No.38,39 4-24” Caliper OD/ID = flat leg / Fine adjustment screw Lock Joint Transfer (for Layout) No.36,37 4-24” Caliper OD/ID = flat leg / Fine adjustment screw
(I sell them all day @ www.ebay.com/usr/mrdavesneedfulthings )

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