Machine tools. Test conditions for horizontal spindle turret and single spindle automatic lathes. Testing of the accuracy|Machine tools, Accuracy, Turret lathes, Spindles, Lathes, Automatic, Testing conditions, Design, Machine tool components, Size, Diameter, Dimensional tolerances, Form tolerances, Single-point cutting tools, Spindle noses, Machining tolerances, Verification, Numerical control, Performance testing, Grades (quality), Geometry, Dimensional measurement, Square shape, Parallel, Reproducibility, Flatness (surface), Circular shape, Thread pitch, Horizontal