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The design of jumbo drill bits varies depending on the intended applicationjumbo drill bits. Some feature cutting edges that rotate at high speeds, while others utilize a hammering action for penetration. Many are equipped with replaceable cutting inserts, allowing for cost-effective maintenance and repair.

Threaded drill rods come in various sizes and thread types, such as API thread, IF thread, and Premium thread, each tailored to specific drilling requirements. The choice of thread type depends on factors like drilling depth, rock hardness, and the expected drilling load The choice of thread type depends on factors like drilling depth, rock hardness, and the expected drilling load The choice of thread type depends on factors like drilling depth, rock hardness, and the expected drilling load The choice of thread type depends on factors like drilling depth, rock hardness, and the expected drilling loadthreaded drill rod. Additionally, they can be customized with different coatings, like zinc plating or anti-corrosion paint, to protect against rust and extend their service life.