DTH Drill Bit

DTH drill bits, used in conjunction with DTH hammers, are designed for drilling in various rock types. Paired with DTH hammers, drill bit designs feature splined drivers for rotating the bit underground. The bits come in different sizes and styles, allowing for the drilling of holes of various dimensions.

Grand DTH Bits

Grand DTH bits are made of superior quality alloy steel which is made by Timken in U.S. Besides, all our DTH bits are using the brand "Element Six" T.C carbide which provides (the T.C buttons) for Boart Longyear

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DTH Bits, Down the hole bits, down the hole bit

Threaded Button Bits

Look no further than Grand's Threaded Button Bits. We bring you top-quality alloy steels from the USA and the finest carbides made in China, combined using hot press technology to produce threaded button bits that excel in various drilling scenarios.

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Grand Coupling Sleeves

Both semi-bridge and full-bridge coupling sleeves are manufactured by Tianjin Grand.

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Our range of DTH drill bits is manufactured using high-quality materials, striking a good balance between penetration capability and bit longevity. We offer a diverse selection of standard and custom drill bits with a wide range of shank options and various head designs to meet the needs of every project.