When users are getting serious need of ultra clear and precise dot indication at different work distances, even though it is far more enough than formal hand reaching, it should be a quite nice beginning for users to operate a high density beam emitting tool of a 445nm blue laser diode module. It gets advance use of an import 445nm blue laser diode and a qualified optic lens inside a highly durable anodized aluminum alloy housing tube. Any time this direct diode emission made 445nm blue dot laser gets proper installation and adjustment to correct position, not any longer relying on any manual labor force input, it brings users quite satisfied dot measuring results for all precise machinery processing works. 
Owing to the special use of a qualified glass coated lens inside a durable metal housing tube, this 445nm blue laser diode module is working well with high transmittance and high density blue laser light source emission at long extending distance. At the same time, after passing through quite strict laser beam stability test and aging preventing test, the real blue dot alignment work gets no effect by increasing temperature and serious electric current impact as well. This 445nm blue dot laser still gets up to 85% laser beam stability under constant work time of 10 hours per day. 
Cooperating with the most durable anodized aluminum alloy housing tube, although it gets high power up to 50mW to 100mW, this direct diode emission made 445nm blue laser diode module still gets ultra compact size tube diameter of 16mm. It enables superior nice thermal emitting and thermal conductivity. In addition, after its cooperation with a metal heat sink cooling system, this direct diode emission made 445nm blue dot laser still gets superior nice thermal emitting and ultra clear and stable blue dot generation for all precise machinery processing works.
Within quite long extending distance and formal lighting working occasions etc, within freely installed distance of 3 meters, this 445nm blue laser diode module enables quite easy carrying, quick reaching and no barrier blue dot projection for multiple raw material processing works. It gets freely adjusted laser beam focus and laser dot emitting direction, thus alignment laser brings users increasing accuracy and brightness dot generation at great distance of 25 meters, and gets wide applications for a lot of labs, institutes and colleges. When users are paying high attention to laser safety issue and wear correct laser safety goggles, it just makes easy and secured dot generation for all machinery processing works.