Specification Color BlackMaterial Aluminum AlloyType A 1 x Sharpening Angel Fixture 1 x Sharpening Angel Guage 1 x Sharpening Guide B 1 x Sharpening GuideSharpening Angle Gauge Clamping Range 5 70mmAngle Sharpening Fixture can be set to 15 17 20 22 25 27 30 32 35 37 40 42 45 47°Features Sharpening Guide ① Non slip adaptive knob ② Steel jaws are not easy to damage ③ Hand feel ergonomic and comfortable ④ Spare set of rollers ⑤ Integrated magnetic hexagonal wrench anti loss Sharpening Angle Fixture ⑥ Double guide bar vertical design to ensure the movement of the right angle ⑦ independent positioning pins on both sides more convenient to adjust ⑧ Mirror reflector you can intuitively see the blade close to the plane easy to check the knife blade level degree Sharpening Angle Gauge 15° 20° 25° 30° 35° For Bench Chisels25° 30° 35° 40° 45° For Plane Irons 30° 35° For Mortise ChiselsPackage Included Type as your choice 1 x Honing Guide