Featuring all metal gears for added durability, this 18-Volt Lithium-Ion Cordless 2-Speed 1/2 in. Compact Drill/Driver Kit is the perfect addition to your toolkit. Each kit includes Drill/Driver, 2 Batteries, Charger, and Tool Bag.
[pdf] The KT5C Integrated down the hole drill rig for open use is an advanced drilling device integrating the down the hole drilling system and screw air compressor system, characterized by compact structure, excellent integrity and mobility.
[pdf] The utilization of pneumatic DTH hammer drilling is the most efficient approach to rescue miners. The previous DTH hammer's impact model was simplified and the analysis of impact parameters was incomplete, hi.
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