Check the listing for details. Oshlun LG-R01 Radial Arm Saw Laser Guide. Condition: New. Listed at 30.99 USD. This high quality laser guide from Oshlun Products is the easiest way to add precision to all you cuts. All you need to do to install is replace the outer blade washer with the laser guide unit. No adjustments, no confusing parts. The laser provides you with a visible line for precise cuts. No more guessing exactly where the blade will cut. High quality laser provides a clean, bright and easy to see beam of light. Made with the highest quality laser and electrical components available. Improves safety because where the line is projected, the blade will cut. Automatic switch for effortless on/off operation. Specifications: • Fits most radial arm saws and machines with a 5/8" threaded arbor shaft. (Will not fit some 12" saws that have interlocking arbor flanges, including Ridge & ProTech) • Provided with 2 sets of Silver Oxide batteries • Laser Module -