Industrial micro drilling employs many components and concepts as standard-sized thread milling operations. Apart from size issues, micro drilling features specific rotation and cycle stage approaches. The absence of a sharpened tip makes it susceptible to surface abrasion and work piece slope, which can cause the micro drill bits to wander or enter the material at an angle. Spindles for Micro DrillingMost micro drill spindles are built in a vee-block format, a standard drilling setup for handling circular or curved work pieces. If we talk about the cost, micro drilling might vary based on several factors.