•This standard industrial dowel drill is made of original ultra fine tungsten carbide.
•The high strength steel body has been undergoes petrochemical treatment after heat treatment to reducing deformation
•The spiral part is painted orange or black P.T.F.E.
•HW head is with precise balance center point.
• 2 precise ground cutting edges (Z2).
• 2 spiral grooves.
•Parallel handle, flat driving plane, adjustable screw length.
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