【Powerful 2-Speed Grinding up to 8000 RPM】Adjustable low and high speeds with a 7000–8000 RPM motor deliver precised, strong grinding. Start gentle for puppies or delicate nails, then switch to high speed for thicker nails. This Casfuy dog nail grinder is powerful enough to grind every nail efficiently. 【Ultra-Quiet & Stress-Free Grooming】Equipped with our exclusive top-tier quiet motor technology, this pet nail grinder delivers ultra-quiet and low vibration performance to keep pets calm. Quiet yet powerful, it ensures faster, safer, and stress-free trimming for both pets and owners. 【3 Grinding Ports for All Pet Sizes】3 grinding ports fit small, medium, or large nails. Removing the guard accommodates larger nails and supports quick grinding. 【Diamond Drum Bit for Safe & Smooth Nails】The advanced diamond drum bit gently removes sharp edges and delivers a smooth, safe finish. Recommended by veterinarians and professional groomers, it allows you to trim your pet’s nails anywhere, painlessly and confidently. 【Rechargeable, Portable & Easy to Use】Cordless design with built-in battery provides up to 2 hours runtime after a 3-hour charge. Lightweight, ergonomic body allows comfortable handling with either hand. This trimmer makes nail care convenient and easy anywhere. dog nail grinder