This electronic edge finder enables fast and accurate edge location for milling and machining operations. The highly sensitive probe instantly triggers a bright LED light and audible beep when contacting a conductive workpiece, ensuring precise positioning with minimal setup time. The precision-ground, hardened spring-loaded probe provides repeatable accuracy up to 0.005mm. Manufactured from fully ground tool steel for durability and long service life. Supplied complete with alkaline batteries for immediate use. Features:Precision ground & hardened probe ( spring loaded )LED light & beeperFully ground tool steel bodySupplied with alkaline battery Specifications:Shank Dia.: 20mmProbe Dia.: 10mmPrecision: 0.005mmLength: 160mmBattery Type: LR1 N 1.5V x 2 (included)