Tap Drill Bit

A tap drill bit is a cutting tool used in metalworking to create a hole of the appropriate size and depth for tapping threads. The term "tap drill bit" often refers to a drill bit specifically designed for drilling holes before using a tap to create threads in the drilled hole. In the context of "6PCS (M3-M10) UYU," it seems to indicate a set of six tap drill bits with diameters ranging from M3 to M10, following the metric thread standard. "UYU" might be a brand or specific product identifier.