Starrett 657AA Magnetic Base Complete Set with Base, Upright Post, Rod, Attachment, and Two Snugs

Compatible with Starrett test, back-plunger, dial, AGD, and miniature-dial indicators, as well as similar indicators from other manufacturers Includes magnetic base, upright base post, two snugs, rod, and indicator attachment Push-button on/off switch for one-handed operation Grips horizontally, vertically, and upside down for versatility Upright base post has overall length of 7-7/16" length, with an adjustable 6" long rod