cementing tool 515 each radial fluid channel 570 a 570 b 570 c also intersect the cement bypass 565 of a respective release piston 550 a 550 b 550 c to release the first ball 561 actuating fluid is introduced through the fluid port 542 a and into the annulus 553 of the first release piston 550 a in turn the piston head 552 is extended to place the opening 563 in fluid communication with the radial fluid channel 570 a thereafter cement flowing through the cementing port 545 the annular channel 575 and the radial channel 570 a urges to the ball 561 toward the bore 522 thereby dropping the ball 561 downhole because either position of the piston head 552 provides for fluid communication with the cementing port 545 the piston head 552 may remain in the extended position after the first ball 561 is released to release the second ball actuating fluid is introduced through the second fluid port 542 b and into the annulus 553 of the second release piston 550 b in turn the piston head 552 is extended to place the opening 563 in fluid communication with the radial fluid channel 570 b thereafter cement flowing through the radial channel 570 b urges to the ball 561 toward the bore 522 thereby dropping the ball 561 downhole the third ball may be released in a similar manner by supplying actuating fluid through the third fluid port 542 c in another aspect the cementing tool 515 may optionally include a swivel mechanism to facilitate the cementing operation in one embodiment the fluid ports 541 542 a 542 b 542.