Do not use in the extreme ends of the micrometer range. At extreme ends the boring tool may jam leading to failure.

The collet is set for desired gripping force at factory before dispatch. The collect is meant for vibration damping of the cutting edge and should not be disturbed any time.

When the collet is excessively tightened, any effort to make diameter adjustments would lead to damage of the fine ground threads.

This micro boring cartridge is not to be used for counter bore facing. Any application of fine boring for blind bores should be at least 0.2 mm away from face.