Tool datuming styli

Tool datuming styli vary significantly but tend to have a common mounting M4 thread or ø4 mm hole.

On 4-sided square tips, the length (L) is from the measuring face to the mounting face. For 5-sided cubes and round discs the length is to the front face.

The tolerances to which tools can be set depends upon the flatness and parallelism of the stylus tip to the machine axis.

Fine adjustment is provided on all probes and probe holders to allow these settings to be achieved.

Where rotating tools are to be datumed for diameter the tools must be rotated in reverse to the cutting direction.

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