Blast Hople: The drill pipe is used to drive the pneumatic impactor to rotate together with the drill e piston of the pneumatic impactor impacts the broken ore of the drill bit and is usually used for drilling holes of mm in diameter in small and medium-sized mines. The blast Jul 26, 2022 · We are leading Drilling Machine Manufacturer in Ahmedabad, hole making capacities of 6mm, 13mm, 20mm, 25mm, 38mm, 40mm. These Drilling Machines are flexible and easy to use drills for on-site drilling applications, and even ideally suited for every situation where quick set-up and effective drilling is required.Dec 20, 2013 · It’s also provides with stimulation, directional drilling, cementing, logging, mud engineering, and logistics. 6. Aban Offshore. India’s largest private offshore drilling contractor, Aban Offshore, provides high quality services in oil and gas production and drilling in India as well as the world. 7. Dolphin OffshoreBlast hole drilling machine specification. Drilling Depth. Up to 100 feet (30 meters) Drilling Hole Diameter. 6″ (152mm) Pull Back Force. 3,500 kgf. Drill Head Torque. 210 kg-m.