Micro Size Drill Bits
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A high-performance cobalt steel micro drill from Grainger can precisely machine medical, aerospace and high-precision parts, including aluminum, brass, cast iron, copper, alloyed and unalloyed steels. Micro size drills offer a smaller diameter for precise drilling work and close tolerance metalworking applications. Find a wide range of sizes in bright and tin-coated finishes. Let Grainger help you get it done with high-performance cobalt steel micro size drill bits!