The Folding Diamond Tapered Rod sharpens regular and Serrated blades, fish hooks, guthooks, and many other tools. The fine (600 grit) tapered rod folds into the ergonomic nylon impregnated plastic handle for protection and ease of carrying. The Lansky Tapered Diamond Rod is ideal for every workshop. Renown for their hardness, diamonds are an excellent abrasive for the fast reconditioning and maintenance of all your various tools and knives.InstructionsUSING YOUR FOLDING DIAMOND TAPERED RODStep 1 - Begin by opening the plastic handles. Lock the handles together for safe use.Step 2 - To sharpen a knife, hold the sharpener handles firmly in one hand and the knife in the other.Step 3 - Place the end of the sharpener on a stable surface. Draw the knife edge down the rod at the proper angle, as if you were attempting to slice a thin layer off the rod. Repeat this motion 3 - 4 times using light to moderate pressure. Maintain a consistent angle for the best results.Step 4 - Switch to ...