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

Set of six telescoping gauges for measuring holes, slots, and recesses in woodworking, metalworking, machining, layout, and pattern-making applications Measuring range of 5/16 to 6" Two spring-tensioned telescoping plungers for uniform contact pressure Self-centring handles are rigidly attached to contact plungers Handles measure 2-3/8" and 3-1/4" in length Telescopic gauge set. Handles are rigidly attached to the contact plungers. Automatically self-centring. Constant spring tension provides uniform contact. Both plungers are easily locked at any desired setting.