DescriptionRelated products Oil based permanent marker.Usage 1: Color bottom of the blade and check if all is gone after sharpening.Usage 2: Mark the desired pivot point before profiling 1061328 Calibration Blade 41 EUR BuyMore info 1061206 Blade Angle Tester 48 EUR BuyMore info 1061217 ProSharp Blade Instruments 215 EUR More info