Drilling process (2)
Drill Bit Overview The drill bit needs to sequentially machine holes in the stacked board, so it is composed of high-strength materials, mainly tungsten and cobalt. Drill Bit Ring The collar ring that supports the bit to be aligned with the appropriate length in the Drilling M/C and Spindle Chuck is referred to as the drill bit ring. This ring is color-coded for different diameters to allow easy..
2023.10.05