1,Kit Contents: Our fixed angle sharpener kit has 1 rapid fixing clip, 1 grinding stone holder, 2 angle positioning shafts, 1 height setting block (with joint bearing shaft included), 4 grinding stones, and 4 diamond grinding stones. 2,Rotation Angle: The joint bearing can rotate 360° horizontally, the grinding stone handle can rotate 180° left and right, and the handle can be hitched to the table, which makes the operation more convenient. 3,Angle Confirmation: The angle between the main body of the sharpener and the desktop is 15°, when the grinding stone is in the horizontal state it means the angle of sharpening is 15°. 4,Rapid Fixing: The fixed angle sharpening tool does not require a wrench screw to fix the knife, and can be fixed quickly with a gentle pressure. The clamping force is large and does not hurt the knife. 5,Professional and Easy to Operate: The fixed angle knife sharpener kit is professional and easy to operate for quick and easy knife sharpening. Suitable for restaurant and home kitchen use.