The Cutting Edge Clear Sharpening Edge Ruler 4-1/2in x 8-1/2in
Diamond Carbide Edge maintains the sharpness of your rotary blade as it spins. Clear Non-skid dots that keep the ruler from sliding. Unique grid systems make cutting effortless. Large numbers for easy visibility. Light 1/8 inch markings do not distract from 1/4 inch markings.