1.Sophisticated material: this small circuit board drill is made of highquality carbide as the main material and is complemented by a complicated and precise calcination process. After continuous striking and refining, it has an extremely high hardness and strength, a refined material, a stable structure and superior performance. 2.Unique chip engraving design: the unique design of this circuit board drill a larger chip removal space, low drilling resistance, and flat and smooth drilling marks. It is equipped with a sharper cutting edge, making operation easier and more efficient and significantly shortening working time. 3.Smooth drilling surface: this small circuit board drill is different from conventional drill bits. It improves the quality of the perforated wall by reducing cutting force and broken drill. 4.Streamlined and practical: From a structural point of view, this microboard drilling structure is simple and stable, allowing for easier replacement and use. Despite its simple and compact appearance, the bit has superior performance. It is a tool with extensive features and high costeffectiveness.