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 - The latest, hardest titanium-plated diamond wheels we've ever made, adopted titanium plating process, which means you will enjoy 20% longer lifetime of these bits than non-titanium-plated ones - These stones leave an excellent cutting edge on saw chain 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 Applies to: These grinding heads for electric saw sharpeners are suitable for metal polishing, such as electric saws, jade, wood, molds, steel, etc. Package Included: 12PCS Diamond Chainsaw Sharpener