HRC45-55 Hardness 400-8000mm Length Hexagonal Drill Rod with 4??46’/7??/11??/12?? Taper Degree for Rock Drilling
Description
Shank Size H22*108mm 1.2m Hexagonal Drill Rod For Small Hole Drilling Product Description This high-performance drill rod features a precision taper design (4??46’/7??/11??/12??) that ensures secure bit …





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