Description: - The grinding wheel of the electric saw sharpener is easy to install and has good heat dissipation. It can be applied to the polisher without removing the chain, which improves work efficiency. - Includes twelve replacement grinding stones - Use with electric handheld grinder to easily sharpen your saw chain - The latest, hardest titanium-plated diamond grinding stones we have ever made, have undergone a titanium plating process, which means you will enjoy 20% longer life on these bits than other non-titanium-plated. - These stones leave an excellent cutting edge on the saw chain and are easy to replace on most electric chain sharpeners. - Ideal for sharpening chainsaw chain teeth Specifications: Material: Titanium-coated emery grit Size: 4.0mm, 4.8mm, 5.5mm Shank: 3mm Applicable for: These electric saw sharpener grinding heads are suitable for metal polishing, such as electric saws, jade, wood, molds, steel, etc. Package includes: 12pcs Diamond Chainsaw Sharpening Burrs