12pcs Diamond Chainsaw Sharpener Grinder Bits for Dremel Tools, Professional Precision Chain Grinding 12pcs Diamond Chainsaw Sharpener Burr Grinder Chain Saw Drill Bits For Dremel - 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 - Use with electric handheld grinder to easily sharpen your saw chain - Features the latest, hardest titanium-plated diamond wheels, utilizing a titanium plating process that provides up to 20% longer lifespan compared to non-titanium-plated bits - These stones produce a precise cutting edge on saw chains and are easily replaced on most electric chain sharpeners - Ideal for sharpening chain saw teeth Specifications: Material: Titanium coated emery grains Size: 4.0mm, 4.8mm, 5.5mm Shank: 3mm Application: These grinding heads for electric saw sharpeners are suitable for metal polishing, including electric saws, jade, wood, molds, and steel Package Included: 12PCS Diamond Chainsaw Sharpener