Knafs Aluminum Ruler and Knife Angle Finder

Made from 6061 Aerospace-Grade aluminum Blue anodized finish Knife angle guides for 15°, 20°, 25°, 30°, 35°, and 40° Measurements in both imperial and metric Laser engraved markings DIY knife sharpeners rejoice! This blue anodized 6061 aerospace-grade aluminum ruler is 6 inches of ...Made from 6061 Aerospace-Grade aluminum Blue anodized finish Knife angle guides for 15°, 20°, 25°, 30°, 35°, and 40° Measurements in both imperial and metric Laser engraved markings DIY knife sharpeners rejoice! This blue anodized 6061 aerospace-grade aluminum ruler is 6 inches of sweet knife accessory goodness. Measure the lenght of you blade, the height of your relief edge, and best of all this ruler has SIX different angle guides to find your exact grind angle on any knife blade. This ruler packs a punch.