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Small drill bits, often ranging from fractions of an inch to around ¼ inch in diameter, come in a variety of materials and shapes to cater to different tasks. There are high-speed steel (HSS) bits for general-purpose drilling, cobalt bits for drilling through harder materials like stainless steel, and titanium-coated bits that offer increased durability and heat resistance. Each type is a specialized tool, much like a chosen word that perfectly fits the context of a sentence.

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A rock drill extension rod, as the name implies, is an additional shaft attached to a primary drill rod, designed to extend the drilling depth and range. It is primarily used with percussion or rotary rock drills, which are employed for drilling through hard and abrasive rock formations. These rods are made from high-strength materials like alloy steel, ensuring durability and resistance against the harsh conditions encountered in drilling applications.

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