Highlights:1.High-precision Sharpening: VEVOR MR-20G drill bits sharpener excels at sharpening point angle and lip relief angle. It features 18 elastic collets - 3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20 suitable for 3-20 diameter of drill bits. Plus, we also provide 2 drill bits collet chucks for your secure operation.2.Adjustable Angle: Our drill bits sharpener provides 95 to 135 point angle adjustment, ensuring precise coordination with drill hole material and rotation speed. Moreover, you can also DIY the lip relief angle through the positioner pins, grinding 4 types of lip relief angle to meet different needs.3.2 Grinding Wheels, Easy Replacement: Choose between CBN or SDC grinding wheels for compatibility with various materials. The CBN model is suitable for high-speed steel materials, while the SDC model is used to grind alloy tungsten steel materials.4.Powerful plus Robust: Utilizing a powerful DC motor, our drill bit re-sharpener grinder operates with strong horsepower and torque, running at 4500PRM high speed while maintaining low noise levels. 45# steel material significantly improves stability and longevity.5.Versatile & Ready for Tasks: This drill bits grinding sharpening machine is specialized in drill bits re-sharpening. Whether youre in a factory, workshop, garage, or tackling DIY projects at home, keep your drill bits sharp and ready for action with ease. 1Details: Precise Sharpening, Sharper Bits, Better Results Experience precision with VEVOR drill bits sharpener! With 95°-135° adjustable point angle, 4 types of lip relief angle, and 18 collets, it ensures accurate sharpening for ф3-ф20 diameters of drill bits. Choose between CBN or SDC grinding wheels for different materials to optimize efficiency.The point angle can be adjusted from 95° to 135°, which can effectively coordinate with the material of drill hole and the rotation speed. Moreover, you can adjust the lip relief angle with the positioner pins, enabling you to grind 4 types of lip relief angles to suit various requirements.Equipped with CBN & SDC grinding wheels to enhance precision and work efficiency: the CBN wheel is ideal for high-speed steel materials, while the SDC wheel excels at grinding alloy tungsten steel materials, expanding the range of applications.Our portable drill bit grinder comes with a powerful DC motor for strong and stable performance. With 4500rpm high-speed rotation, strong torque, long-lasting durability, and minimal noise, this drill bit sharpener machine offers robust support for your sharpening tasks.Easily Sharpen Drill Bits in 3 Simple Steps! Lightweight and user-friendly, our drill bit grinder sharpener is mainly constructed with 45# steel material for improved stability and durability. 2 professional drill bit collet chucks are also included for added safety during operation.