Overview Reviews Product Description Rock drill is a heavy duty, mandrel-built hose.It is designed to give top performance in severe working conditions.While G242 is kink-resistant and very flexible, the cover is designed for extra abrasion resistance.Rock drill is very popular in mines and heavy construction sites. Greenline Industrial Hose Catalog Product Videos Custom Field Product Reviews Write a Review Write a Review × Greenline 1" Rock Drill Hose G242-100 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *