- Endostar Gates Glidden drills are engine-driven instruments and they are used to enlarge root canals orifice and coronal third of the canals. - These instruments represent the oldest forms of root canal instruments. Gates Glidden drills are small - flame shaped cutting instruments used in conventional hand piece. - Slightly flexible. - Rotation speed: 450-800 rpm. - Non cutting tip. - Sterilization steam autoclave 134°C. - Size: #5. **For further product information , please contact Chat support**