This drill bit sharpener handles bits from 3 to 13mm in diameter, using 11 elastic collets sized 3 through 13mm so each bit sits securely while the CBN grinding wheel restores the point and lip relief angle. The point angle adjusts from 95 to 135 degrees to match different drilling materials and rotation speeds, and the CBN wheel is built specifically for high-speed steel bits, improving grinding precision over general-purpose wheels. A DC motor drives the unit at 4500 RPM with strong torque while keeping noise levels low, and the 45# steel construction adds stability and holds up to repeated use. It suits factories, workshops, garages, and home DIY setups where keeping drill bits sharp saves the cost of replacing them. At 18.3 pounds and about 11.2 x 5.3 x 6.3 inches, it's compact enough to store on a shelf or workbench and pull out whenever bits need a quick re-sharpen.