TCT Micro PCB Drill Bits 0.25mm – 0.45mm – per piece

These micro TCT drill bits are for drilling tiny holes in PCB circuit boards, watches, scale modelling and in miniature art crafts. As a fragile bit it requires a steady hand with a swivel pintong and better with a precision Proxxon micromot 50/E or 230/E running on a slow RPM installed on Micromot drill stand MB200. Spray aerosol silicon release agent to drill bit to reduce friction.