SM260 — separate smooth CAD solids
Units: millimeters. All parts share the same assembly coordinates.

shaft-fitted.step: shaft, with reconstructed bores
spiral-a-fitted.step: first spiral flight
spiral-b-fitted.step: second spiral flight

Each STEP contains one valid solid with closed shells, checked after import.
Faces are smooth CAD surfaces fitted to the scan. Exploded spacing in the
viewer is for inspection only; STEP files retain assembly coordinates.

These files are the surface-fitted revision. Hidden bore continuity and
concealed root interfaces remain inferred. Small root overlaps may remain
when assembled. The 0.025 mm target is not met globally; consult the included
tolerance report.
