Features: *The sharpening head of the electric saw sharpener is easy to install and has good heat dissipation. It can be applied to the polishing agent without removing the chain, thereby improving work efficiency. *Includes twelve replacement dressing stones, Gold plus silver. *Use with electric sure sharp handheld grinder to easily sharpen your saw chain. *The latest, hardest titanium-plated Diamond Wheels we'e ever made, adopted titanium plating process, which means you will enjoy 20% longer lifetime of these bits than others non-titanium-plated. *These stones leave an excellent cutting edge on saw chain and are easily replaced on most electric chain sharpeners Carded. *Ideal for sharpening chain saw teeth. *These grinding heads for electric saw sharpeners are suitable for metal polishing, such as electric saws, jade, wood, molds, steel, etc. Specifications: Product name: Diamond Chainsaw Sharpener Material: Emery Color: Gold + Silver Shank Dia: 3mm Optional Size: 4.0mm, 4.8mm, 5.5mm Suitable for: metal polishing, such as electric saws, jade, wood, molds, steel, etc. Quantity: 12Pcs/Set Package Contents: 12 Diamond Chainsaw Sharpener Note: 1.Transition: 1cm=10mm=0.39inch. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 3. Please allow slight manual measurement deviation for the data.