Durable to Use: Our diamond wheels are titanium plated, which means that the service life of these drills is much longer than that of other wheels without titanium plating. The diamond particles on the drill bit are polished finely and evenly, making them hard and resistant to wear. Fast Result: This is a powerful sharpening tool with high hardness diamond chainsaw, allowing for fast grinding performance. Wide Application: The set includes three sizes suitable for various applications such as metal polishing, chain saws, and wood. Easy to Install: The chain saw sharpener is easy to install and can be changed in just two steps. The titanium-coated file is harder and more wear-resistant, reducing the need for frequent replacements. Suitable Type: 5/32 inch wheels for electric chain saws and other small blades; 3/16 inch wheels for small oil chain saws; 7/32 inch wheels for large oil chain saws. Color: Gold Material: Emery Package Contents: 6 x Burr grinding stone file 5/32 inch 6 x Burr grinding stone file 3/16 inch 6 x Burr grinding stone file 7/32 inch Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.