The SWITCHBACk* (SWB) casing cleaning tool is versatile and can be configured as a scraper, brush or mill. It can be run as an integral part of the
BHA while drilling the final hole section multiple tools can be run in a single string that allows scraping, brushing, milling, or a combination of all three operations.
While RIH and during drilling operations the component pads are recessed. Once drilling operations have reached TD the SWITCHBACk tool can be functioned by
dropping a ball and applying pressure. As the ball shears through the tool the pads extend to begin the clean up operation.