Product Name: Electronic Three Point Inside Micrometer Set Model NO.: 600-97XX Customized: Customized Certification: DIN, RoHS, ISO Precision Measuring Device: Precision Measuring Device Accuracy: A Measure Method: Manual Precision: 0.002mm Resolution: 0.001mm Range: 0?300mm Measurement Object: Inside Diameter Material: Stainless Steel Type: Micrometer Size: Inch and Metric Sizes Protection Level: IP54 Package: Aluminium Case Delivery: 10 Days or 45 Days Trademark: Neutral or OEM Transport Package: in Aluminiumcase or Wooden Case Specification: ISO Origin: China Product Description Supply precision Electronic Three Point Inside Micrometers andSet: Features:(1)Protection level: IP54.(2)Self centering 3-point for accurate measurement.(3)With Carbide tipped contact point.(4)Supplied with setting rings.Electronic Dig.3-points Inside Micrometer,IP54Welcome to directly contact us through email, fax and phone to get further assistance.