Infiniter RS-1 Laser Guide (Miter - Chop - Cutoff Saws)

The Infiniter RS-1 Laser Saw Guide: Accuracy at the speed of light. The RS-1 shoots its beam where the blade will cut. Fits most Miter, Chop, and Cutoff Saws with 7/16-Inch shaft. Dimensions (O by H):  1.96-Inch by 0.41-Inch. Weight:  2.12 oz. including Batteries; Centrifugal type switch - turns it on when blade spins.  Powered by three LR44 batteries (Included) Wavelength: 650nm Warranty for 1 year Max operating speed:  5000 RPM  Complies with the European Standard EN 60825-1 and USA FDA Laser safety regulations.