New Type Three Point Internal Micrometers 1)Stainless Steel 2)With Setting Ring 3)CE,ISO9001:2008 4)Packing in mental box Item No. Range(mm) Individual range(mm) Setting rings(mm) Pieces/set422-406 6-12 6-,8-10,10-12 Φ8,Φ10 3422-411 11-12 11-14,14-17,17-20 Φ14,Φ20 3122-420 20-40 20-25.25-30.30-35,35-40 Φ25,Φ35 4 422-006 New Three Point Internal Micrometers