In any type of highly precise and accurate dot alignment at various work distances, it is not limited by the use of a simple red laser pointer, but making good job with a direct diode emission tool, such as a 650nm red laser diode module. It is projecting formal brightness red laser light directly from a 650nm red laser diode within 5mW to 100mW. 
In those of industrial and high tech precise dot measuring work fields, on basis of correct use of output power, and easy adjustment of both laser beam focus and red dot emitting direction, this red dot laser alignment just makes easy reaching, good direction red dot alignment in continuous use. It provides perfect dot aligning solution for laser marking, laser engraving, drilling system, high tech and red laser sight etc.
https://www.berlinlasers.com/635nm-red-laser-diode-module
https://www.berlinlasers.com/650nm-red-laser-diode-module
https://www.berlinlasers.com/660nm-5mw-100mw-red-laser-diode-module