We will ship the bracket hole 84mm version if buyer doesn't specify it. Shop VEVOR Micro Inlaid Mirror Multi-Directional Microscope with Spring Bracket Multi-Directional Micro-Setting Microscope Microscope Gem Diamond Setting Machine with Stand Jewelry Tools 7X-45X in the Teaching Aids department at . Micro Inlaid Mirror Multi-Directional Microscope with Spring Bracket Multi-Directional Micro-Setting... Micro-inserts stand is made of high rigidity , compact and stable chassis, its small footprint . VEVOR Multi Directional Microscope Spring Mount Jewelry Microscope 7X 45X Magnification Micro Jewelry Inlay Stand with Built-in USB Ring LED Light Jeweler's Microscope Micro-setting Tools Multi-Directional Microscope,Microscope Gaem Diamond TFCFL - - Norway Microscope Stand For Jewelry Both the bracket hole 84mm and 77mm version are available. 7X-45X Micro Inlaid Mirror Multi-directional Micro-setting Microscope Jewelry Tools The micro inlaid mirror features superior optical performance design, large zoom ratio and wide field, long working distance, is an essential tool micro-inlay for jewelry industry The structure of aesthetic and practical sections gimbals for a variety of height , azimuth work and working environment too . Novel and unique ergonomic design , flexible telescopic mechanical focusing mechanism makes the operation more convenient and user-friendly by the unique head rest frame, so that the operator exempt fatigue , improve work efficiency