Starrett 73 Series "Yankee" Spring-Type Inside Calipers with Flat Legs and Quick-Spring Nut - Hardened Fulcrum Stud, Spring Joint Type, 4" Size and Capacity - 73B-4

High Accuracy and Precision - Spring calipers are excellent tools in providing accurate markings to maintain exact measurements from one workpiece to another. The flexible bow spring is exceedingly strong and reliable.

Quality Tool - Starrett Calipers are well-finished and are made from high-grade steel. The legs are made of flat stock and are very durable, while the fulcrum stud is hardened with a smooth bearing surface.

Labor Saving - The threads of the nut firmly engage the screw at the slightest pressure from the leg and when the pressure is withdrawn, the nut automatically releases itself, sliding freely over the screw.

Allows Fine Adjustments - The Starrett quick-adjusting automatic-closing spring nut is designed to make fast and positive adjustments to ensure quality work in the workplace.

Wide Variation of Sizes - All sizes are available with either spring nut or solid nut, 4-inch, 6-inch, 8-inch, and 12-inch. This makes it easy to find the size you need for the job at hand.