With a disengageable worm gear which allows rapid indexing. One rotation of handle equals four degrees on collar. The table is made of high grade cast iron. Works as an indexing unit in the vertical position as well as a conventional rotary table for circular cutting, boring or angle setting, etc.
Parallelism of clamping surface to base: 0.020mm
Flatness of clamping surface: 0.015mm
True running cylindrical centre bore: 0.020mm
True running of tapered centre bore: 0.020mm
Squareness of clamping surface to centre slot: 0.010mm