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. - Contains twelve replacement grinding stones - Use with electric handheld grinder to easily sharpen your saw chain - The newest, hardest titanium-coated diamond grinding stones we have ever produced have used the titanium coating process, which means you will enjoy 20% longer life for these parts than other non-titanium coated ones. - These stones leave an excellent cutting edge on the saw chain and are easy to replace on most electric chain sharpeners. - Perfect for sharpening chainsaw teeth Specifications: Material: Titanium-coated emery grit Size: 4.0mm, 4.8mm, 5.5mm Shank: 3mm Applicable to: These grinding heads for electric saw sharpeners are suitable for metal polishing, such as electric saws, jade, wood, marble, steel, etc. Package includes: 12 pcs diamond grinding pins for chainsaw