THREE ROTARY KNOBS FOR ADJUSTMENT: The micro rotary knob enables users to make 360adjustment. The X rotary knob and Y rotary knob can be used to adjust horizontal position while working. HEIGHT ADJUSTABLE and BUILT-IN HORIZONTAL BUBBLE: Users can adjust the height by rotating the three legs of the adapter even on a tilt surface.The Built-in Horizontal Bubble View Level can help you adjust the angle and accuracy. 1/4 INCH MALE THREAD AND 5/8 INCH THREADED MOUNT: 1/4 inch male thread is suitable for any type of tool that comes with a mount size of 1/4 inch. And 5/8 inch threaded mount makes it possible to be attached to a tripod or other tool for use. DURABLE DESIGN: This adapter features, durable design for bearing heavy loads and can withstand wear and impact of the job-site. WIDE APPLICATIONS: AT2 adapter can be connected to any device that features a male thread as well as Huepar, 622CG/R, 621CG/R, 8211G, 8300G, 902CG, 901CG, 9011G, 9211G/R, GF360G/R,Box-1G/R laser level.