Boring is usually considered ideal for precision machining hole processing methods in a variety of different size and shape of the workpiece. In order to adapt to the need to increase productivity, boring tool design also constantly innovate and improve. In recent years, technological improvements boring tool is mainly reflected in the following four aspects.      A screen with digital readout precision boring head      Since NC (nc) technology advent of digital display technology has been widely used in the cnc machine tools and coordinate measuring machines. In addition, digital micrometer, digital calipers and other digital measuring tools have also been widely used. However, the application of digital technology in precision boring tool has been slow, and its constraints are mainly high-speed rotating coolant and boring head Boring used.      In the past, when you were working on boring processing center must be very careful to avoid splash of cooling fluid into the electronic components boring head digital device. Today, the new boring knife was designed using cooling can better solve this problem. Because the coolant directly to the cutting tool parts through internal channels, in order to achieve complete separation of coolant and boring head of digital devices. In addition, the external new CNC boring tool was a good seal, which can effectively prevent the coolant and DRO electronic component contact.      Number of high-speed machining Boring, boring head unbalanced high-speed rotation, the centrifugal force and the boring head itself can cause a large vibration, thereby damaging the sensitive display unit. The new boring head by using a built-in balancing mechanism that can reduce or eliminate unwanted vibration at high speed boring. Currently, with digital readout screen precision boring head has been able to speed up 16000r / min high speed boring.