Lapping is the process of mixing loose abrasives with a vehicle such as oil and letting it remove material from the work piece at very controlled rate. The "Free Abrasive " method of lapping employs a hardened table as opposed to a soft cast iron table, which can remove stock faster and still give all the benefits of conventional lapping.

• Flatness: 1 Light Band (11.6 millionth of an inch)
• Parallelism: .0001 inches
• Size Control: +/- .00015 inches
• Finishes: As low as 4 Ra and 2 or better with a polishing machine

Lapping has many other advantages:

• Small thin parts are easily handled
• Thermal distortions are virtually non-existent
• Clamping distortions are a thing of the past
• Brittle parts are easy to run because of the gentle grinding action
• Any kind of material including nonmagnetic can be run