nal DuoBase. The 8 inch length is perfect for chisels, plane irons, chef knives - practically any tool. While providing a generous sharpening surface, it is engineered to be rugged, lightweight and compact - great on the jobsite! The 8 product is also available in the DuoSharpplus configuration featuring a 2 continuous zone of DMT diamond for small and pointed tools such as woodcarving gouges and engravers.- Size: 8 x 2.625 x 0.375 (203mm x 67mm 10mm)- Coarse/X-Coarse