Drilling head M18 for D-16mm Earth Rod

Drilling head M18

Features: 
Drilling head made from high strength steel alloy, inside thread and thread of ground rod stick together, can effectively protect the ground rod in a deep hurt.
Used for ground rod bottom drill deep. 
Connection is threaded, screw type M18.
For use in grounding and lightning systems.

Specifications: 
Material: steel.
Rod diameter: 16mm.
Thread type: M18.
Length: 44mm.
Outer diameter: 24mm.
Weight: 65g.