Focus Tool Maker's Microscope (TM-3) : With X-Y Movement on Ball Bearing Slides. Having Micrometer (50mm dia) L.C. 0.01 or 0.005mm with goniometer. Fixed Magnification 30x. Having both transmitted and light in wo. Optional Accessories : Depth Measuring Attachment Center Holding Device Attachments V-Block V-Support Measuring Eye Pieces with reticles (each)