SPI Carbide Ball Contact Points, 1/4 Length, A.G.D. #4-48 Thread – 30-643-1

Ball Diameter Tolerances.0001″

0.0625″ (1/16)

UN Series Threads Per Inch

11 – 6

ACME Threads Per Inch

Metric Threads Pitch (mm)

2.5 – 4

SPI Optional Carbide Ball Contact Points, 1/4″ Length, A.G.D. #4-48 Thread – 30-643-1

Price is per pair.

for SPI IPD Gage + Software – A Complete Internal Pitch Diameter Measuring System