Parallel lapping machines of ulm series from paraflat machines manufacturers are available with variable speed drives. The standard features includes: available from 6" to 32" lap plate diameters presently; available without pneumatic pressure for models 6" and 10"; single carrier concept; available with standard 5 pressure air control; unique feature - lap plates do not lose flatness at all; no downtime for correction of lap plates; useful for parts requiring precision parallelism always; reduced inventory as carrier and other wear parts are eliminated; economical as carriers can be made in-house. These products are very economical and maintenance free.