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Diamond Coring Bit Coring Need To Comply With The Principle Jan 08, 2018

1. Diamond drilling must use the core card retainer card core spring, dry drilling under any circumstances are prohibited.

2 card access to the core, you must first stop turning, with the vertical shaft slowly lifting the bottom of the hole, so that the retainer core tightly. Once the core has been broken, the drill should not be placed on the bottom of the hole for further exploration.

3. Every time we should try to clean the core, so as not to damage drill the next time back drilling. When the residual core is more than 0.2m, a special application of a rocker shall be made for fishing and the use of a diamond drill bit shall be strictly prohibited.

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