Check the listing for details. Bokum Micro Dial Boring Head Bulit In Indicator Micro Adjust .0001” W/1” Shank. Condition: Used. Listed at 239.99 USD. The Bokum Micro Dial Boring Head is a precision tool designed for micro adjustments with a resolution of .0001 inches. It features a built-in indicator for accurate readings and comes with a 1-inch shank for secure attachment to lathes or milling machines. This tool is ideal for CNC, metalworking, and manufacturing industries where precise measurements and adjustments are required. The Bokum Micro Dial Boring Head ensures high accuracy and consistency in micro boring applications.