Tapered Contact Point, Compatible with Brand and Series Starrett Series: 25, 81, 655, 656, 2700, 2900, 3900 Dial and Digital Indicators, Compatible with Manufacturer Model No. Starrett 2700, Starrett 2900, Starrett 3900, Starrett 655, Starrett 656, Starrett 81, Starrett 25, Contact Point Material Steel, Contact Point Shape Tapered, Contact Point Thread Size #4-48, For Use With AGD Indicator, Includes Case No, Number of Pieces 1, Overall Length 2-3/8 in, Contact Point Tip Diameter 1/16 in.
I used this extension with my dial indicator to help with Dialing in the Cam Specifications for my 78 KZ 1000. Thin enough to go past cam and make contact with the shim bucket without interference. The 4-48 threads fit almost all Dial indicators, not just Starrett.