Vermont Gage 112404550 Class Zz Minus Plug Pin Gage 4.55mm

Product Description

The VERMONT GAGE 112404550 is a Class ZZ minus plug pin gage used to verify that a hole or bore does not exceed its maximum allowable size during NoGo inspection. Machined from steel and finished to a 10 microfinish surface, this pin gage measures a 4.55 mm diameter with a tolerance of 0.00508 mm. At an overall length of 2 inches and weighing 0.02 pounds, it is a compact, precision tool suited for quality control applications on the shop floor or inspection bench. Each unit ships with a Certificate of Accuracy traceable to NIST standards.

This pin gage is intended for NoGo inspection applications where confirming the upper boundary of a hole tolerance is required. It is also suitable for setting and calibrating micrometers, verniers, and other measuring devices that require a known reference diameter. Machinists, quality control inspectors, and toolroom technicians in manufacturing, aerospace, automotive, and general metalworking environments commonly use this gage. Its compact form allows it to be used in tight or recessed features where access is limited.

Key Features

• Class ZZ minus tolerance of 0.00508 mm provides precise NoGo inspection reference
• Steel construction with 10 microfinish surface for consistent contact and wear resistance
• 4.55 mm diameter measurement range
• Overall length of 2 inches for convenient handling in bench and floor inspection
• Includes Certificate of Accuracy with NIST traceability for audit and calibration documentation

Compatibility

Designed for use as a NoGo inspection gage and as a reference standard for setting micrometers, verniers, and other measuring devices requiring a 4.55 mm diameter reference.

Installation Notes

Pin gages should be handled with clean, dry gloves or cotton-tipped tools to prevent corrosion from skin contact. Store the gage in its protective case when not in use and keep it away from abrasive surfaces. Verify the gage is at ambient temperature before use, as thermal expansion can affect measurement accuracy. Inspection and calibration intervals should follow your facility quality management system requirements.