1、ACCURATE AND SENSITIVE: The accurate internal mechanical structure make the coaxial centering indicator sensitive and accurate to operate, the measuring range is 0-3mm, the indexing value is 0.01mm, and the measurement accuracy is high 2、RELIABLE STRUCTURE: The coaxial centering indicator dial semi closed structure effectively prevents damage caused by foreign body splashing during operating 3、CLEAR METER: The clear scale and numbers on the large dial and the transparent cover make the centering indicator easy to read, bringing more convenience to your work 4、HIGH EFFICIENCY: When the machine spindle is rotating, the surface of the indicator can remain stationary in any desired position, allowing you to freely and accurately position the table with both hands, improving efficiency and accuracy 5、WITH BOX: Milling machine center test dial equipped with a storage box for easy storage, portability and access, and also prevents damage and loss