Starrett S579HZ Self Centering Telescoping Gauge With 2 Telescoping Arms Set, 5/16″- 6″ Range, 2-3/8 – 3-1/4″ Handle Length (6 Pieces)

Product Description

Plunger of gages expand from center, under spring tension, to size of hole being measured and is then locked in place by knurled knob. Measurement is made by a micrometer or a caliper.
Handles are rigidly attached to the contact plungers and are automatically self-centering
Constant spring tension gives uniform contact pressure
Both plungers are easily locked at any desired setting
Ends of contacts are hardened and ground
Set includes 6 gages with a range of 5/16″ – 6″ and case

Additional Information