DIAMOND SHARPENING STONE - hone block - 2" x 6" double sided FINE + MEDIUM New Diamond Honing - two sided - Fine (600 grit), Coarse (400 grit) combination block These hard, sharp, tough, stones are available in various grits Recognized for the clean, sharp surfaces Produce on tools,dies,blades,molds and any other metal piece requiring sharpening or smoothing Measures approximately 6" x 2" (152 x 51 mm).