Top hammer drilling tools
Product Center
Top hammer drilling tools
Product Center
Top hammer drilling tools
The tapered‑hole drill bit, also known as a tapered ball‑tooth钎head, achieves secure connection through friction between its internal conical bore and the tapered shank of the drill rod; it features a threadless design and is compatible with pneumatic rock drills mounted on air leg supports or handheld units (such as the YT28 and YT24 models—light‑weight drilling equipment). It is classified as a shallow‑hole top‑hammer rock‑drilling tool. Constructed with a high‑strength alloy steel body and wear‑resistant tungsten carbide ball teeth, it breaks rock by combining impact and rotary action. Primarily used for drilling shallow holes up to 3–5 meters deep (with a recommended maximum of 3 meters for larger diameters), this tool boasts a simple structure, quick disassembly and assembly, and excellent cost‑effectiveness. It finds widespread application in small‑scale mining, shallow‑hole tunneling, quarrying blast‑hole drilling, slope‑anchor bolt drilling, and other lightweight shallow‑hole rock‑drilling operations.
Threaded‑connection drill bits are top‑hammer rock‑drilling tools that connect directly to the drill rod via a standard threaded shank at the tail. Unlike spline‑type bits used with downhole impactors, they are compatible with hydraulic rock‑drilling rigs, open‑pit top‑hammer drills, anchor‑bolt rigs, and other top‑impact drilling equipment. Featuring a high‑strength alloy‑steel body paired with high‑toughness tungsten‑carbide ball teeth, these bits rely on the impact energy and rotational torque delivered by the rig’s front‑end impactor to fracture rock, making them well suited for medium‑ and small‑diameter, medium‑to‑deep hole drilling. They are widely employed in tunnel excavation, underground mining, slope‑stabilization anchoring, quarry blasting, and similar applications, delivering excellent hole straightness and proving ideal for staged‑rod‑extension operations involving medium‑to‑deep holes.
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