Built for precision and durability: Set of 10 solid tungsten carbide drill bits engineered for long-lasting cutting performance on small, high-precision parts. Consistent, fine diameters: Includes 10 drills with cutting diameters from 1.0 mm to 1.2 mm, giving fine incremental sizes for accurate hole work and repeatable results. Optimized geometry for efficient cutting: 12 mm cutting length and approximately 38 mm overall length for good reach and stable drilling in thin plates and small components. Wide material compatibility: Effective for PCB and SMT board work, CNC machining of plates and molds, and drilling plastics, copper, stainless steel, and other precision metal parts. Why this set helps you: Provides the small, hard-wearing bits needed to produce clean, accurate holes without frequent replacement, reducing downtime and scrap in precision tasks. Key specifications Quantity: 10 drill bits Material: Tungsten carbide Cutting diameter range: 1.0 mm – 1.2 mm Cutting length: 12 mm Overall length: approx. 38 mm Typical applications PCB and SMT repair or prototype work: Drilling vias, enlarging holes, or cleaning plated-through holes on circuit boards. Precision metal and mold work: Creating or finishing small holes in molds, brass/copper fittings, and fine metal components used in electronics and instrumentation. Small-part fabrication and plastics: Accurate holemaking in plastic housings, spacers, and other OEM prototyping components using CNC or micro-drilling equipment. Practical benefits Saves time and cost by reducing bit changes and rework Maintains consistent hole quality for assembly and finishing Compact sizes suited to micro-machining and delicate work This set delivers the specific sizes and hardness needed for reliable micro-drilling across a range of common precision materials.