Product Name: 30-300mm/1.2-12" Three Point Internal Micrometer Set Model NO.: Three point internal micrometer Customized: Customized Certification: JIS, DIN, ANS, GB, CE, RoHS, ISO Precision Measuring Device: Precision Measuring Device Accuracy: A Measure Method: Manual Precision: 0.001mm Resolution: 0.004mm Range: 30-300mm/1.2-12" Measurement Object: Inside Diameter Material: Stainless Steel Type: Three Point Internal Micrometer Transport Package: Aluminium Box Specification: 30-300mm/1.2-12" Origin: China HS Code: 9017300000 Product Description 30-300mm/1.2-12" Three Point Internal Micrometer SetFeature:Measurement can be taken closer to the bottom of the blind bore, and can be taken into a deep hole with an extension rod.Highly durable because of carbide-tipped contact points.Ratche stopAluminium body