SCHARMANN How to Employ Scharmann Borers. The "Opticut System. A booklet with the details of the Scharmann System and Machines. Includes details of: Selecting the Machine Types WF, WF-ax, WF-qv, WFT, Boring Mill Combinations, Work Tables and Floor Plates, Drive and Clamping Systems,Spindle Bearings, Tool Registers and Chucking, Thermal Stabilization, Digital Readouts, Optical Measuring Devices, Operating Techniques, etc