Horizontal / Vertical 5C Collette Indexer Features include... Spindle is manufactured with tapered seat in body frame Lever operated collet closer with 100:1 leverage ratio Front mounted ratchet control for rapid indexing Furnished with a 24 space indexing plate Dividing spindle concentricity: 0.0002" Cylindrical center bore (per 1"): 0.0008" Spindle centerline parallelism: 0.0008" Base to face squareness: 0.0008" Center slot to dividing spindle concentricity: 0.0008" Lateral offset of center slot of dividing spindle: 0.0008"