New developments in its ProBore roof bits and ProPoint high-efficiency picks are delivering measurable benefits in productivity and safety for underground mining operations, according to Kennametal. ProBore roof bits feature a new twistedbody design specifically engineered for improved operation.

Unlike traditional straight-body designs where dust and other materials clog or otherwise slow down equipment, the new ProBore twisted-body design acts like a flute on a twist drill, efficiently channeling dust away, simultaneously reducing clogging and lowering cutting forces, making drilling more efficient. An arched tip support increases the seating area for the bit, reducing breakage and increasing tip life. Two point styles are available, one with a split nose for more demanding operations; and a solid nose style for increased penetration rates. The ProPoint high-efficiency tip features a new thinner cross-section that reduces respirable dust and lowers power consumption while increasing material size. A proprietary body profile with a narrow bottom tip reduces breakage and extends service life, meaning more rock cutting with significantly fewer motor trips for continuous mining machines.

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