... Grinder: 1.Drill grinder, easy operate, accurate and fast. 2.With diamond grinding wheel, long service life. 3.CE Drill Bit Grinder ... to grind easily.2) Economical price that greatly reduces the cost and improves the use effect.3) With diamond grinding wheel, it ... , Φ5, Φ6, Φ7, Φ8, Φ9, Φ10, Φ11, Φ12, Φ13Apolegamic collets: Φ2.5, Φ3.5, Φ4.5, Φ5.5, Φ14Standard accessory: 5mm ...