389-371-32-USB Ball Anvil & Spindle 6.3" Deep Throat Micrometer 1" to USB Direct PackageMitutoyo 0 1" Digital Ball Anvil & Ball Spindle 6. 3" Deep Throat Micrometer to USB Direct Package This package provides all of the items required to be able to measure your products with a Mitutoyo 0 1" Digital Ball Anvil & Ball Spindle Deep Throat Micrometer, and then send the measured data to a PC through a USB port. The incoming data is converted to a keyboard style entry, so wherever you can type in data is where your incoming data will be