15°-45° Adjustable Lawn Mower Blade Sharpener Tool For Grinding Machine15 45 Adjustable Lawn Mower Blade Sharpener Feature: Used blades and previously ground blades can be brought back to like new condition. Pivoting head allows for sharpening mulching blades. Pivoting head allows operator to easily sharpen both sections of a mulching blade at the correct angle. Mounting bracket can be attached to a truck or trailer The Model will adjust and lock at angles from 15 to 45 degrees, in 5 degree increments. The 15 degree