"GOLE STONE"brand granite surface plate accuracy refer advanced leading countries standard. Flatness to lerance as follows:
grade 000 1 x (1 + d/1000) m
grade 00 2 x (1 + d/1000) m
grade 0 4 x (1 + d/1000) m
grade 1 8 x (1 + d/1000) m
(d is the length of the plate's diagonal)

For inspecting dimensions of working -pieves in cooperative use with dial indicator or wlwctronic probes add gauge blocks.
Less indicator and wood pack if need please adv.when order.

For inspecting machine spindle and else squareness work-pieces

For inspecting the straightness and flatness.
Welcome your inquiry for special specifications.

On inspection of verticality and parallelism as well As absolure 90° measuring

For inspecting the parallelism of work-pieces also for replacing the working blocks at the
same height when required.
Supplied in matched pairs.

For inspecting the coaxality cylindricity symmetry and shifting of revolution parts.
Generally supply by pair if need single pc please adv.when order.