Boring Bit
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100% Original China CNC Tungsten Carbide Wood Boring Drill Bits Tools
•HW head is with precise balance center point.
• 2 precise ground cutting edges (Z2).
•4 spiral flutes.
•Parallel handle, flat driving plane, adjustable screw length. -
Wholesale Discount China Carbide Boring Drill Bit for Wood
•The drilling parts is solid carbide which will improve lifetime and performance.
•The steel shank has been undergoes petrochemical treatment after heat treatment to reducing deformation
• 2 precise ground cutting edges (Z2) and 2 spiral grooves.
• The raw materials are virgin materials and fine particles, which ensure the stability of the quality-the warranty is 365 days, the quality problems within 365 years can be negotiated and handled.