S579GZ Set of 4 Telescoping Gauges
The Starrett 579 Self-Centring Telescoping Gauge Sets includes two telescoping arms. The handles are rigidly attached to the contact plungers and are automatically self-centring, while the ends of both contacts are hardened and ground to a radius to allow proper clearance on the smallest hole the gauge will enter.
Set of 4 (579A, 579B, 579C and 579D in case) *Precision Ground Radius on each gage provides two-point contact for maximum accuracy
*Greater range
*Constant spring tension gives uniform contact pressure
*Both plungers are easily locked at any desired setting
*Handles can be individually ordered. Handles longer than 12"" (300mm) are available on special order
*Two telescoping contacts
