For cost estimation purposes, 2.0 m using rope scaffolding with a borehole diameter of 45–50 mm

Single-tube scaffolding installed at 3.0 m

Based on experience, the maximum height for self-drilling construction using rope scaffolding is 3 meters!!

We can't lift it any higher than this, and we can't bring up the cuttings (the debris from drilling) either.

My hand is tingling, too!