- Hard and anti-corrosion construction: The multipurpose drill bit grinding sharpener is made of nylon and diamond material, providing good hardness to resist scraping and abrasion between the tool and drill bit. It also offers anti-corrosion performance for a long service life. - Efficient grinding capability: This drill grinder features 4 diamond grinding wheels and 3 grinding edges (0.08''-0.63'') to handle different drill bits. It rotates quickly for efficient grinding, helping to improve overall grinding performance. - Lightweight and portable: Dimensions are 11 x 2.30 x 7 cm (4.33 x 0.90 x 2.76 in) with a net weight of about 192 g (0.42 lb). The compact size and low weight make it easy to carry and store, so you can sharpen drills and tools wherever you are. - Easy to use: To operate, select a suitable drill bit, install the grinding bit on the drill, then attach the drill bit and run the motor to grind with ease. - Practical use scenarios: - On a job site with limited space: quickly sharpen drill bits to keep work progressing without waiting for repairs. - In a workshop or maintenance setting: maintain carbide and standard drill bits with multiple grinding edges for versatility. - At home or in DIY projects: convenient, portable sharpening tool for routine drill bit upkeep and tool readiness.