The Huanyu Portable Drill Sharpening Machine operates on 110V mains power at 1A current and delivers 5300 rpm. The drill bit sharpener is ideal for HSS steel. CBN is used as the sharpening wheel. Changing the grinding wheel is quick - just unscrew it with a wrench (spare wheels are not included). The sharpener has 11 ER20 collets for stable and accurate grinding. The setting pin is adjustable. The machine can sharpen drill bits at 4 types of angles. It is also possible to set the required sharpening angle yourself. Reliability and quality of work are ensured by a low-noise powerful motor with copper winding and good heat dissipation. The weight of the sharpener is 18.7 lbs.