What is drilling and boring
Drilling refers to the use of drill bits in the physical material processing hole on the operation.
⒋ drill rigidity and accuracy are poor, so the drilling accuracy is low, the general size of the accuracy of IT11 ~ IT10, roughness Ra100 ~ 25.
⒊ large amount of cutting, chip removal difficult, easy to produce vibration.
This describes the drilling work in the exploration work, as well as the drilling tools and auxiliary tools and some measures.
