Dear Sir/Madam,We are asking for a micrometer which is able to measure the internal diameters of a cylindrical products. The asked range of diameters to be measured is 20 to 30 mm and the muximum depth of the internal diameter is 100 mm.Dear Kumud, Please send all your asked data to our bottom e-mail address.Best Regards, Mr. Dipl. Ing. Mazen Azzouabi (General Manager- Mechanical Engineer) KASWARA For Mechanical Engineering And Automation Nahr Aisha Damascus Syria P. O. Box: 14388 Tel/Fax: 00963 11 812 3795 Mobile: 00963 944 281277 Note: You can chat with me directly on MSN, YAHOO and SKYPE messengers as follows: On SKYPE as mazenzz11 Show More