Boart Longyear is expanding its down-the-hole (DTH) bit options by releasing 18 new product configurations that are compatible with more than 26 third-party DTH hammers. The DTH bit body incorporates premium hardened steel alloy, which improves shank wear resistance and manages bit body wash. Multiple tungsten carbide button insert designs allow for multiple re-sharpening while delivering optimized penetration rates, the company says. The new DTH bit shaft configurations offer a combination of different spline counts, diameters and lengths. Optional foot valves can be added when required.
Boart Longyear: DTH bit options
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