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High premium 6-5/8” od drill pipe – grade s 135 weight 27,7 lbs/ft – range 2 – tool joints 8” od x 5” id – connections 6-5/8” fh pin x box new hard banding on box tool joints. third party inspection, if required, will be charged at extra cost.

The rockmore story. rockmore international’s roots began in 1948, with the founding of the mining industry’s newest manufacturer, throwaway bit corporation. named for its flagship single-use drill bit products, throwaway started with a commitment to quality – a promise to manufacture high quality bits from the toughest steel and carbide inserts available.

Dhd3.5 cop32 cop34 mach303 br33 dth drill bit for mining, quarry, water well drilling rig product name: sd4 well drilling air dth bits for sale dth bits are used for blast hole drilling: working with dth hammer, mainly applied in mining, marble quarry or well drilling and other construction projects.

Secoroc’s cop hammers have an unparalleled reputation for productivity and the lowest cost per meter drilled. find these and more at rock drill sales.

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