For 2 ~ 34 mm Twist Drill Re-sharpening
2.0 ~ 26mm   Angle   90° ~ 140° 
26.1 ~ 32mm   Angle 118° ~ 140°
32.1 ~ 34mm   Angle 125° ~ 140°
1. Precise Grinding Results , Precision Assurance within 0.02mm
2. Easy to Operate , grinding a drill within 10 seconds.
3. Special Design High Accuracy Alloy Steel Collets
4. Accurate Grinding consumption 0.2mm
5. High Efficiency DC motor
6. Stable Quality Diamond Dust Grinding Wheel
7. Considerable Design, Invisible Tool Box, Delicate & Friendly Use
8. Portable Design 

GS-35 Operation Video, Please refer to GS-1 及 GS-21/34