Description Underground Tunneling Lasers 2000 Foot Projection Used in above ground and underground operations. The Model L350 is rock steady, extremely rugged and uses 12.5mm optics for a small dot size at distance. Solid Brass – Proved to work in Harsh Environments Intrinsically Safe – Explosion Proof Containment Not Required Dust and Waterproof – Great for Underground Use. Adjustable Hanging Brackets Included – Connects to Spads directly Precision Beam Alignment – Tabs and Brackets Self Align Laser Beam to Seam. Optional CL1000 Line Generator Screws into End of the Laser – Projects a Vertical Laser Line onto the face. DOWNLOAD PDF #1 DOWNLOAD PDF #2 DOWNLOAD PDF #3