Sherline lathes and mills can be retrofitted to include a digital readout. See the DRO on CNC page for installation instructions. project that simply can't be addressed in a manual of this type. Digital Readout Handwheels instructions on installing DRO see page 39).The following links are instructions for assembling your DRO handwheel on your Sherline machine. With proper assembly, you will be able to reduce the backlash The following are instructions for assembling your DRO handwheel on the Z-axis of your lathe. With proper assembly, you will be able to reduce the backlash