Type A / B / M / HS
|Spring steel shaft: For preventing deformation.|
|Screw point tip: For pulling the bit through the wood easily.|
|Flute: For ejecting the chips faster.|
|Fisth hole: (Tip/Shank): For using together with wire or the grip of the cable.|
| Precision welding technology: |
A. Clean and beautiful welding - Without any welding salg.
B. Strong welding - With stand the torque more than 300 pounds.
C. Precision wdlding - With homocentric rotation provides accurate and smooth drill.
|For installing the wire, telephone cable and internet cable.|