The convex rod includes an adjustable stopper

Product size: 150 x 25 x 10 mm (6" x 1" x 3/8")

or perceivable movement

T1 Angle Guide slides on the surface of your working table and does not damage the sharpening stone

preserving the temper of your knives

laser knife edge goniometer The convex rod includes anLaser Goniometer is a tool of measurement of the sharpening angle of knives and scissors. It's the price wise alternative of expensive equipment invented by CATRA. Goniometer Lite is an incredibly simple, but sufficiently informative device. It utilizes a built in laser source powered by one CR2032 battery. You can test knives up to 2" wide. The grind can be symmetric, asymmetric, multi beveled, or convexed. The maximum full angle 80 degrees.