Micro HSS Drill Bits 0.30mm–3.00mm | Metric Mini Twist Drills

These micro HSS drill bits are available in metric sizes from 0.30mm to 3.00mm, with the matching inch diameter shown for each size. They are general-purpose, straight-shank twist drills suited for small-hole drilling in hobby, model making, jewelry, electronics, light workshop, and precision repair applications.

Each size is sold individually so you can choose the exact diameter needed instead of buying a mixed set with sizes you may not use. These drills have jobber-style proportions, meaning the overall length and drill depth increase with diameter, giving them a familiar general-purpose drill format in very small metric sizes.

Use these HSS micro drills with a pin vise, small drill press, rotary tool, or other suitable low-runout holder. For the smallest sizes, careful alignment, light pressure, and proper speed are important to reduce the chance of breakage.

Common Uses

• Small-hole drilling in plastic, wood, resin, soft metals, and thin sheet materials
• Model making, miniatures, crafts, and precision hobby work
• Jewelry, watch, electronics, and repair work
• PCB prototyping and other light-duty small-hole applications
• Opening or cleaning small holes where an exact metric drill size is needed

Benefits

• Choose the exact size: available from 0.30mm to 3.00mm
• Metric and inch sizes shown: makes it easier to match the drill to your project
• HSS construction: suitable for general-purpose drilling in many common materials
• Jobber-style proportions: familiar twist-drill format with usable drill depth
• Sold individually: replace only the size you need

Specifications

Size Chart

Note: Because these are very small drill bits, use a rigid setup and avoid side loading. HSS micro drills are best suited for careful general-purpose drilling, not aggressive CNC production drilling in abrasive materials.