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Adjustable Red Line Laser: Class IIIa Battery, On/Off Switch 4mW [CP-TIM-218-4L-650] - $53.90 : Calpac Lasers Diode Modules Pointers and Levels, 20 years of experience specializing in industrial and promotional laser diode
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OXLasers Adjustable 5V 650nm Red Line Laser Module for Positioning Laser Alignment Locator for Wood Stone Fabric Cutting Laser Swamp (Line) - - Amazon.com
Laser Diode - 5mW 650nm Red : ID 1054 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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L58 AND GL58 PRECISION CONCENTRIC ALIGNMENT LASERS
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Amazon.com: Quarton Laser Module VLM-532-46 LPT (GREEN LINE LASER) Laser line accuracy: 20" (+/- 1mm @10m) : Industrial & Scientific
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