*Professional grade: auto-soldering
*Tungsten carbide tip, accelerates drilling speed and reduces
wear.
*Spiral flute for superior dust removal
*Industrial finish
Spec.:(Metric size)
Diameter(mm): from 3.0mm to 12.0mm
Total length(mm): from 75mm to 150mm
Spec:(Imperial size)
Diameter: from 1/8" to 1/2"
Total length: 3" to 6"
Remarks:
Ordinary grade(manual-soldering) is also available.
*Professional grade: auto-soldering
*Tungsten carbide tip, accelerates drilling speed and reduces
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