McCoy’s DWCRT represents a new family of casing running tools. These mechanically operated tools are both simple to operate and simple to maintain. The DWCRT was developed to make-up, rotate, reciprocate, fill, take flow-back, circulate and drill while running casing with a top drive. The DWCRT is designed to pick up, screw and torque the casing up to the string and run the string into the well while enabling rotating, reciprocating and circulating operations to be conducted on-the-fly. The DWCRT reduces the tools and men needed to run casing compared to conventional techniques. The DWCRT allows the operator to reciprocate, rotate, and circulate simultaneously to help improve efficiency when running casing.

The built-in compensator allows casing travel during thread make-up. The tool's locking mechanism allows it to be set and released with minimal torque and eliminates the need for any top drive set-down weight. One actuator head is used for 4-1/2"-20" casing with some configurations having as few as 50 parts. The modular design provides maximum versatility while keeping both operating cost and inventory low. These key features make the DWCRT the most versatile CRT on the market.

The DWCRT has two positions: Locked and Unlocked.
Locked Position (There is white showing below the indicator).
When the tool is in the Locked Position it can be rotated to the left or the right. The slips will not extend or retract when the tool is in the locked position.
Unlocked Position (There is no white below the indicator, the Indicator should be kept in the yellow area) When the tool is in the unlocked position, the slips can be extended or retracted. By rotating to the right in the unlocked position, the slips will extend to grip the pipe. When rotating to the left in the unlocked position the slips will retract to release the pipe.