Starrett Electronic Internal Micrometer 1 to 1-3/8"Range,Bluetooth 770BXTZ-138

Product Highlights Wide measurement range without changing anvils  Carbide measuring faces on sizes above 1/2" (12.5mm) diameter  Extensions available for deep holes  Precision ratchet stop provides correct contact pressure for accurate readings  Each micrometer bore gage with head comes with a wooden case, complete with setting ring, contacts, adjusting wrench, spare battery, and instructions  IP65 level of protection against coolant, water, dirt and dust  Large high-contrast LCD digital readout is easy to read and reduces error  RS232 output  Includes instant inch/millimeter conversion and preset + and - functions  Proximity output with optional built-in Bluetooth  Bi-directional communication Range (in): 1 to 1-3/8"  Range (mm): 25-35mm  Resolution (in): .00005"  Resolution (mm): 0.001mm  SPC Output: SPC Output  Approximate Measuring Depth (in): 2-5/8"  Approximate Measuring Depth (mm): 66mm  Accuracy (in): .00015"  Accuracy (mm): .004mm