The Bosch BM 1 positioning device features a microfine height-adjustment system for quick horizontal level adjustment, as well as the versatility to work with a variety of levels, due to its 1/4 In.-20 mounting screw. The microfine adjustment system includes a knob to adjust the horizontal line height while mounted, which eliminates the user from having to remount if the tool is not at correct level. The device features very strong magnets for mounting to metal surfaces. It has other mounting systems, such as slots for screws or nails, clip attachment for ceiling grids and raceways for optional straps. The mount also has retractable feet, so that it is freestanding to use as a mini tripod. It also has two different threaded mounts on the bottom (1/4 In-20 and 5/8 In-11). This gives it the versatility to be used with standard tripod or pole mounts.