Value Collection OD/4 Outside Caliper 4 Inch Spring Joint

Product Description

The VALUE COLLECTION OD/4 is a spring-joint outside caliper designed for direct measurement of exterior dimensions on round stock, pipe, and machined parts. The 4-inch flat leg spans up to 4 inches (100mm) maximum measurement, giving machinists, pipefitters, and tradespeople a reliable hand tool for quick outside-diameter checks. The quick-nut adjustment allows precise setting with a single-hand operation. Constructed from polished steel, the OD/4 is built to withstand routine shop and field use without corrosion concerns on the contact surfaces.

This caliper is suited for use in machine shops, plumbing fabrication environments, and general metalworking applications where direct measurement of outside diameters or widths is required. The spring-joint design maintains consistent jaw tension and returns the legs to a set position after each measurement, making repetitive checks faster and more consistent. It is appropriate for apprentice and journeyman tradespeople who need an affordable, dependable measuring tool for layout and verification tasks.

Key Features

• 4-inch leg length with up to 4-inch (100mm) maximum outside measurement capacity
• Spring joint maintains consistent leg tension and returns to set position automatically
• Quick-nut adjustment allows rapid and accurate leg-spread setting
• Flat leg profile for reliable contact on cylindrical and flat workpieces
• Polished steel construction resists wear on measuring surfaces

Compatibility

Designed as a general-purpose outside caliper suitable for standard hand-measurement tasks across plumbing, machining, and metalworking trades where a 4-inch outside caliper is required.

Installation Notes

No installation is required for this hand measurement tool. Before use, verify the legs are clean and free of burrs or debris that could affect measurement accuracy. Calibrate against a known standard when precise tolerances are critical. Store with legs slightly open to relieve spring tension during extended periods of non-use.