Starrett S579GZ Self Centering Telescoping Gauge With 2 Telescoping Arms Set, 5/16" - 2-1/8" Range, 2-3/8" Handle Length (4 Pieces)

Set of four telescoping gauges for measuring holes, slots, and recesses in woodworking, metalworking, machining, layout, and pattern-making applications Measuring range of 5/16 to 2-1/8" Two spring-tensioned telescoping plungers for uniform contact pressure Self-centering handles are rigidly attached to contact plungers Handles measure 2-3/8" in length Range: 5/16-1/2", 1/2-3/4", 3/4-1 1/4", 1 1/4-2 1/8" Self-Centering Two Telescoping Arms Constant spring tension gives uniform contact pressure Both plunders are easily locked at any desired setting