*Professinal grade: auto-soldering
*Tungsten carbide tip, accelerates drilling speed and reduces
wear
*Spiral flute for superior dust removal
*Industrial finish.
Spec.:
Diameter(mm): 3.0mm-26.0mm
Total length(mm): 60mm-600mm
Remark:
Ordinary grade(manual-soldering) is also available.
*Professinal grade: auto-soldering
*Tungsten carbide tip, accelerates drilling speed and reduces
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drill bit
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