Product Name: High Precision 3-Point Inside Micrometers Model NO.: Through Hole Customized: Customized Certification: JIS, DIN, ISO Precision Measuring Device: Precision Measuring Device Accuracy: 0.001mm Measure Method: Manual Precision: 0.004 Resolution: 0.001mm (Withing 12mm) & 0.0005(Range Over 12mm) Range: 0?150mm Measurement Object: Inside Diameter Material: Stainless Steel Type: Micrometer Head: Three-Point Self-Centering Stop: Ratchet Stop Graduation: 0.005mm/0.0002'' Delivery: 30~45 Days Trademark: Neutral or OEM Transport Package: Inside: Aluminium Case or Wooden Case Specification: ISO Origin: China Product Description Supply Precision Three Point Inside Micrometer. Sets are also available.A. Single or setB. Three points self-centering headsC. Rachet stopD. Both inch and metric sizesE. Industrial StandardF. Graduation of metric: 0.005mmGraduation of Inch: 0.0002"For more details of our products, please kindly visit our website to browse and download our cataolg.You can also directly contact us through email, fax and phone to get further assistance.