Drill Bit Grinding Machine : 1.easy operate, accurate and fast. 2.With diamond grinding ... service life.5) Bearing shaft and locking unit.6) The machine is set up with the function of adjusting a point ... collets: Φ8, Φ9, Φ10, Φ11, Φ12, Φ27, Φ28, Φ29, Φ30Standard accessory: 5mm hex wrench Dimension: 460×240×220cm Net weight: 26Kg ...