Micro drills are small diameter drills typically used for precision drilling in electronic, medical, and other industries that require high accuracy and precision. They are commonly used for drilling tiny holes in printed circuit boards (PCBs), semiconductor devices, medical devices, and jewelry.
Micro drills are available in a range of diameters, from as small as 0.05mm (0.002 inches) up to 3.0mm (0.118 inches) or larger, depending on the manufacturer. They are often made of high-speed steel (HSS), solid carbide, or diamond-coated materials, which provide superior hardness and wear resistance to withstand the high speeds and heat generated during drilling.
The drill bit design can vary depending on the application, but generally, micro drills have a two-flute design with a 118-degree point angle. The drill point may also be modified with a flat, chamfered or pointed tip, depending on the material being drilled.
When using micro drills, it is important to use the appropriate drilling technique to prevent the drill bit from breaking due to excessive force or heat buildup. This may involve using lubricants or coolants, reducing drilling speed, and using a low drilling force.
Overall, micro drills are essential tools for precision drilling and are widely used in various industries where small and accurate holes are required.
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