Tungsten Carbide Drill Bits Set Size:Set A（3.2+4.2+5.2mm） Product Size - The length

Product Size - The length of the expansion tube is 30mm (Aircraft) / 35mm (Butterfly)

The unique design ensures clean and smooth holes with reduced splintering

✔ When holding the plaster cutter

ensuring durability and reliability

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Tungsten Carbide Drill Bits Set Size:Set A（3.2+4.2+5.2mm） Product Size - The lengthSIZE GUIDE FEATURES EXCEPTIONAL HARDNESS: Constructed from premium tungsten carbide, these drill bits deliver exceptional hardness and stable performance. Their sharp and durable edges can easily penetrate stainless steel, iron, copper, aluminum alloy, wood, and plastic. FAST AND ACCURATE DRILLING: The 118 sharp angle design allows for quick and precise drilling, reducing the time and effort needed for each project. Enjoy smoother cuts and cleaner