Pin Gages
Quick Answer
A pin gage (also called a plug gage or gage pin) is a precision-ground cylindrical tool used to check the diameter of holes, verify bore size, and inspect hole location and alignment. Pin gages are available as individual pins or in sets covering a range of diameters, in go/no-go pairs for attribute inspection, and in Class ZZ, Z, Y, X, and XX tolerance grades for different accuracy requirements.
Higher Precision stocks pin gages from Vermont Gage, Meyer Gage, Starrett, INSIZE, Fowler, Asimeto, and SPI — individual pin gages, pin gage sets, go/no-go plug gages, and tapered pin gages in inch and metric, in Class ZZ through Class XX tolerance grades, for hole inspection, calibration, and quality control across manufacturing, aerospace, automotive, and medical device applications. Need help selecting? Call us at 800-469-0132 or contact us online.















































