SPI Drop Indicator Contact Point, Style: Flat Button, Thread Size: #4-48 – 21-261-3

SPI Drop Indicator Contact Point, Style: Flat Button, Thread Size: #4-48 Contact Point Style Flat Button Thread Size #4-48 Ball Diameter 2-1/2" Ball Material Black Oxide Steel For Use With Dial Indicators Contact Point Length 0.25" Contact Point Length 1/4