how to use the drill doctor

{"title":"Standard Push Button 4 Hole Dental Air Rotor Handpiece Water Spray Turbine Drill Handpiece","imgUrl":"https:\/\/img.chinax.com\/nimg\/0a\/58\/880996206c8fa962042e82220ae5-200x200-1.jpg","attrs":{"Price":"USD0.2-4.5Piece\/Pieces","Brand Name":"HPDOVE DENTAL","Model Number":"YCX-24SK-MP-4","Minimum Order Quantity":"1Piece\/Pieces","Delivery Time":"5-8 work days","Certification":"CE","Place of Origin":"China (Mainland)","Payment Terms":"L\/C, T\/T, Western Union, D\/P","Supply Ability":"30000Pieces\/Month","Packaging Details":"Carton box","Name":"Standard Push Button 4 Hole Air Dental High Speed Water Spray Turbine Drill Handpiece","Brand":"HPDOVE","Material":"Metal and Plastic","Rotating Speed":"\u2265300,000r\/min","Noise":"\u226475dB","Torsion":"\u22650.20N.cm","Clamping force":"\u226530N","Radial runout":"\u22640.02mm","Weight":"28g"}}