The scraper coring bit is a commonly used drill bit for rotary drilling. Its structure is relatively simple, usually with an elliptical cylindrical shell with internal threads. On the casing, a lateral working blade is welded, and a flake-shaped carbide cutting tool is welded on the blade. At the same time, the radial working surface is also welded with a flake-shaped and cylindrical carbide cutting tool and is surfacing with granular carbide. .
Scraper coring bits are mainly used for coring drilling in soft to medium-hard formations. They can directly remove the core from the core tube. During operation, the scraper coring bit has a simple structure and is easy to operate, and the drill bit can be replaced quickly and easily to improve drilling efficiency.
In general, the scraper coring bit is a widely used, efficient and practical coring bit.
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