... Diameter:12-26mm Tool Grinding Angle:118-140 Degree PP-30 Drill Bit Sharpener Features:Competitive Price, Easy to Use, and ... a drill within 10 seconds. Unskilled workers can learn to sharpen the drill quickly.Economical price, grinding fast and high accuracyHigh ... Efficiency DC motor, stable frequency,long service life . PP-30 Drill Bit Sharpener