Honing Guide for Sharpening Plane Irons & Wood Chisels. This is a new honing guide. Great for sharpening plane irons and wood chisels. For plane irons use the wider jaws. For wood chisels use the narrow jaws. It measures approximately 3 1/2" x 9/16" x 1 5/16" (89 x 14 x 33 mm) We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.