Starrett No. 80 Vintage 4″ Outside Yankee Spring Thread Calipers Machinist H449
USD 49.99 USD
Specifications
| Country Of Origin | United States |
| Brand | Starrett |
Here is a nice old pair of Starrett No. 80 Yankee Spring Thread Calipers. (page 197 in the old Starrett Catalog #26 printed 1938). Anyways these are 4" and they will open to 3-13/16" while still under spring pressure with the solid screw nut.