|The material is too hard for the diamond specification.
||Match the diamond specification to the material.
|The bit is glazed (smooth diamonds).
||Re-sharpen the tool by drilling into abrasive material (sandstone, block etc.)
|Excessive speed of rotation.
||Adjust speed of rotation.
|The cooling is excessive and causes the tool to aquaplane.
||Reduce the water flow.
|Excessive play within the carriage guides.
||Adjust the carriage on the slide to reduce play.
|The weight on the tool is insufficient.
||Increase the weight on the tool.
|The machine is badly fixed.
||Check that the machine’s fixing is correct.
|The motor is too weak.
||Match the motor power to the diameter.