Precautions For Tapered bit

Posté par drilling kaiqiu 23 juin 2021

Pay attention to check the water and gas pipeline at any time, and whether the bolts and nuts of each accessory are firm;
Pay attention to check the lubricating oil condition of the wind motor at any time;
When the working surface is immersed in water, a large diameter drill bit should be used when opening the hole, and the drill pipe should be inserted to allow the drill pipe to be 1-2 meters above the water surface to prevent mud and slag from falling into the hole.
It is not allowed to reverse at noon during drilling operations to prevent the drill rod from falling into the hole;.
When stopping work in a short period of time, give a small amount of air pressure to prevent sand from invading the inside of the Drill pipe. If you stop Drill pipe for a long time, you should lift the impactor 1-2 meters from the bottom of the hole to fix it.

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