hello all, so this whole laser business is really new to me. im trying to design an alignment tool that will use a laser line diode or whatever the correct term is to help with aligning some metal pieces and spacing them correctly. so i bought a 20 laser offline. its focusable and all seems well. the problem i ran into was when i held the laser up to the workpiece, which happens to be ground tool steal (very shiny) if i didnt hold it perfectly perpendicular the line wouldnt appear as bright. my whole goal is to use a line type laser to project a long line across 12 inches or so, preferably at an angle to help stretch the beam length and keep overall height at a minimum. so far i cant seem to find the best option that works well on shiny reflective and metal surfaces. is there a good laser type and class that would work for this? color, wavelength? theres got to me something that can work well on not so ideal conditions. any ideas would be helpful as this is something i know nothing about. thanks in advance!